|
|
![]() |
Class Numbers & Titles | Class Numbers Only | USPC Index | International | HELP |
![]() |
You are viewing a Class definition. |
![]() |
![]() | COMMUNICATIONS: RADIO WAVE ANTENNAS |
Click here for a printable version of this file |
SECTION I - CLASS DEFINITION
A. This is the generic class for antennas for the transmission of radio wave energy through the natural media (i.e., air, earth, water, etc.) for point-to-point communication or for the reception of such transmitted radio wave energy.
B. In this class are apparatus and systems which constitute part of an antenna transmission or reception apparatus or system and which are limited to use in connection with the transmission and reception of radio wave energy, e.g., electromagnetic horns and arrays.
C. Exclusions:
1. This class excludes noncommunication applications involving radio waves, such as resiation by radio waves for therapeutic purposes or for measuring and testing a physical parameter where no communications or signaling is involved.
2. Also excluded from this class are systems, such as detector and receiver systems, oscillation generator systems, modulator systems, amplifier systems, which are used as component parts of radio wave energy transmission or reception systems but which are of more general utility.
3. This class also excludes communication by electromagnetic waves other than radio waves (e.g., by partial rays, compressional waves, etc.). Communication restricted to rays or visible light, heat, infrared, ultraviolet, X-rays, cathode rays, ions, gamma rays, and beta rays, as well as inductive coupling are excluded from this class.
See References to Other Classes, below.
SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
TELEDYNAMICS OTHER THAN SIGNALING:
See Class Definition, C, above for the radio wave energy systems for controlling apparatus and mechanism other than indicating or measuring instruments which are included in this class. See subclass 7 of this class and the search notes thereto for the miscellaneous systems for controlling apparatus other than indicating and measuring instruments which are classified in this class. See the classes specified under "SEARCH CLASS" below for a reference to some of the other classes which provide for radiant energy controlled devices and apparatus.
COMMUNICATIONS:
Many classes provide for devices, apparatus and systems useful in communicating information. For example, one class provides for means for displaying information by printed or painted cards, calendars, pictures, labels, tags and signs. Another class provides for recording systems and recorders, etc. Class 343 is primarily concerned with the information conveyed by means of radio wave energy signals and with radio wave energy teledynamics. Also see References with Other Classes below.
SIGNALING:
For the relationship of Class 343 to the signaling classes, see the classes referencing this section in References to Other Classes, below.
MEASURING AND TESTING:
This class includes some patents for measuring, detecting, and/or utilizing radio wave energy. The detection of objects, or the use of radio wave energy to measure distance, direction, and/or velocity of an object is included in this class when the only measurement is of the amplitude of the radio wave energy, or of the direction in which the energy is transmitted or the direction from which the energy is received, or where the duration of time the energy is being propagated is measured, or where only the detection of radio wave energy is involved. This class also includes the measurement of the amplitude or intensity of the radiated radio wave energy where the measurement is performed by detecting and measuring the energy. Antennas combined with structure for measuring the magnitude of the signal energy flowing in, to, or from the antenna, a significant relationship existing between the antenna and the measuring structure, are classified in subclass 703 of this class.
For other measuring and testing, see References to Other Classes, below.
SECTION III - REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
40, | Card, Picture, or Sign Exhibiting, for means for displaying information by printed or painted cards, calendars, pictures, labels, tags and signs, |
47, | Plant Husbandry, subclass 1.3 for methods and apparatus for culture of plants by means of electricity, including radiating electrical energy. |
73, | Measuring and Testing, is the generic class for measuring and testing methods and apparatus. The search notes to the class definition of Class 73 should be consulted for other classes which provide for measuring and testing processes and apparatus. subclasses 570+ for miscellaneous apparatus for testing devices by means of vibratory forces (e.g., certain types of compressional waves), see indented subclasses 584+ where sound waves are used. Class 73 provides for measuring and testing methods and apparatus which involve a radiant energy test and a nonelectrical test. Class 136, Batteries: Thermoelectric and Photoelectric, subclasses 200+ for thermoelectric generators, particularly subclasses 213+ for radiation (e.g., infrared) promoters. (See Lines With Other Classes, "Measuring and Testing," above.) |
89, | Ordnance, subclasses 1 and 41 for apparatus designed to control and/or move a gun for aiming it towards a target, including such apparatus where radiant energy is utilized and subclass 1.5 for radiant energy actuated or controlled devices for releasing bombs, flares, etc., from aircraft. |
91, | Motors: Expansible Chamber Type, appropriate subclasses for expansible chamber motors controlled by radiant energy. |
102, | Ammunition and Explosives, subclass 384 for drop bombs with direction controlling means, including those controlled by radiant energy, subclasses 416+ and the subclasses specified in the notes thereto for explosive mines adapted to be fixed automatically, for firing device of the mine being actuated by electrical, magnetic, wave or radiant energy, and the ignitors, per se, for such mines; and subclass 214 for fuses, primers and igniting devices for explosives which involve the utilization of electrical, magnetic, wave, or radiant energy in their operation. |
116, | Signals and Indicators, is the generic class of mechanical (nonelectrical) signaling; subclass 137 is the generic subclass for mechanical sonic and supersonic generators for wave transmission; see subclasses 18+ for code signaling, including heliographic signaling. The signal in Class 116 may be of any type that appeals to any one or more of the senses, such as a bell, horn, whistle, semaphore, light shutter, explosive device or flag. The classes specified in the class definition of class 116 should be searched for other nonelectrical signaling systems. See the notes to Class 116 for the distinction between Class 116 and the electrical classes. Class 116 includes code signaling, including helios:graphic signaling. Class 116, subclass 27 provides for apparatus for the mechanical production and reception of sound vibrations transmitter through bodies of water (submarine signaling). (See Lines With Other Classes, "Signaling" above ). |
136, | Batteries: Thermoelectric and Photoelectric, see Lines With Other Classes and Within This Class, Measuring and Testing, above. |
137, | Fluid Handling, appropriate subclasses for fluid flow control systems including radiant energy systems for valve actuation. |
178, | Telegraphy, includes in many of the subclasses patents where the sole disclosure is of a radiant energy telegraph system, but the claims are not limited to radiant energy transmission of the signals; see especially subclass 19 for handwriting and drawing transmission systems, subclass 22 for secrecy systems, subclass 43 for space induction systems, subclasses 50+ for multiplex systems, and subclasses 58+ for duplex systems, subclasses 66.1+ for miscellaneous systems using alternating current (including high frequency current) to transmit the signal (note that many of the patents in Class 178, subclass 66.1 are closely analogous to the patents in Class 375, subclasses 259+), and subclasses 371+ for miscellaneous telegraph receivers. Also see the appropriate subclasses in Class 178 for telegraph apparatus useful either in radio or wire telegraphy, for example, subclasses 118+, for receivers and subclasses 101+ for keys. (See Lines With Other Classes, "Signaling" above). |
181, | Acoustics, is the generic class for inventions in sound wave radiation, transmission or reception and instruments specific thereto; see subclasses 18 through 22, for speaking tubes, subclasses 126+, for anatomic or prosthetic relation, and subclasses 177+, for megaphones. See the notes to Class 116 for other acoustical signaling systems. (See Lines With Other Classes" Signaling" above). |
181, | Acoustics, subclasses 101+ , for mechanical means for geophysical exploration, subclasses 123+, for mechanical sound echo systems and subclass 125 for mechanical sound locating devices for determining the direction from which a sound proceeds. (See Lines With Other Classes, "Measuring and Testing," above.) |
191, | Electricity: Transmission to Vehicles, subclass 10 , for systems for transferring energy from a roadway or other place to a movable vehicle by means of electromagnetic induction. |
194, | Check-Actuated Control Mechanisms, appropriate subclasses, provides for coin controlled radios. (See Lines With Other Classes, "Signaling", above.) |
219, | Electric Heating, subclass 553 provides for infrared ray generating apparatus. |
244, | Aeronautics and Astronautics, subclass 3.1 for control means for missiles and subclass 77 for systems for automatically controlling aircraft by means of electrical apparatus and radiant energy. Subclass 77 is the generic subclass for the automatic control of the steering of mobile craft in two or three dimensions where electrical means are utilized. See the search notes to subclass 77 in Class 244 for the other classes which provide for radiant energy controlled steering and for a statement as to the lines between the classes. |
246, | Railway Switches and Signals, Note that class 246 contains a number of subclasses relating to "inductive" control or actuation, i.e., where an inductive connection rather than a physical contact being made. subclass 8 provides for inductive telegraphy or telephony in train dispatching systems, subclass 63 for block signal systems having cab signal or train of the inductive type, subclass 194 for train control of the inductive type for controlling the train mechanism. Subclass 4, for train dispatching systems having a train carried signal or train control mechanism, the system including radiant energy control, subclasses 29+ for block signaling systems in which traffic control devices are controlled by radiant energy, see indented subclass 30 where radio energy is used, and subclass 189 for radiant energy control systems for controlling the engineer"s brake valve on a train. (See Lines With Other Classes, Signaling, above). |
250, | Radiant Energy, subclasses 200 through 239are the generic subclasses for photosensitive systems which are responsive to visible light and for apparatus used with photocells, subclass 250 provides for radio and microwave wavemeters for measuring the length or frequency of radio or microwaves, subclasses 281+ provides for methods and apparatus for the ionic separation and or analysis of material on the basic of the mass to electric change of ionic particles of the material being separated or analyzed, subclasses 306+ provides for methods and apparatus of inspecting solid or liquid material by charge particles, and subclasses 336.1+ provides for generic methods and apparatus for utilizing invisible ray energy, such as, cathode rays, ultraviolet rays, the radiations and emanations or radio-active substances, for measuring and detecting purposes; and subclasses 492.1+ is the generic place for methods and apparatus utilizing invisible ray energy, such as ultraviolet and infrared rays. (also see Lines With Other Classes, "Measuring and Testing," above.) |
250, | Radiant Energy, contains patents for signaling by means of radiant energy; see appropriate subclasses for the generic transmission or reception of energy propagated in the form of electromagnetic waves of subatomic, atomic or molecular particles. (See Class Definition, Statement of Class Subclass Matter.) |
251, | Valves and Valve Actuation, subclasses 129+ , for electrical valve actuation. |
307, | Electrical Transmission or Interconnection Systems, subclass 117 for switching systems controlled by radiant energy. |
313, | Electric Lamp and Discharge Devices, appropriate subclasses, provides for the structure of electronic tubes. |
314, | Electric Lamp and Discharge Devices: Consumable Electrodes, subclass 63 for arc lamps and other similar consumable electrode discharge devices where the feeding of the electrode is controlled by radiant energy, usually light or radiant heat. |
315, | Electric Lamp and Discharge Devices: Systems, subclass 34 , provides for radio tubes and other electronic tubes which have an antennae within the envelope of the tube or otherwise structurally combined with the tube. (See Lines With Other Classes, Signaling, above). |
315, | Electric Lamp and Discharge Devices: Systems, see Lines With Other Classes and Within This Class, Signaling, above. Class 315 provides in subclasses 1+ for circuits for energizing cathode-ray tubes, subclass 10 for radiant energy controlled cathode-ray tube circuits, subclasses 32+, for electronic tubes which have a circuit element, such as a switch, inductance, etc., built into and structurally combined with the electronic tube structure, and in subclasses 32 to 363 for systems where a gas or vapor tube or an electric lamp is energized by or controlled by radiant energy, including radio waves, see subclasses 149+ for radiant energy controlled electric lamp and gas or vapor type electric space discharge device systems. |
318, | Electricity: Motive Power Systems, subclass 16 for electric motor systems where the motor is controlled or supplied by space transmitted electromagnetic or electrostatic energy (including radio energy), subclass 460 for electric motor systems controlled by sound or supersonic vibrations, subclass 480 for electric motor systems controlled by radiant energy (e.g., light). |
324, | Electricity: Measuring and Testing, is the generic class for methods and apparatus for testing to determine electrical properties by electrical means; subclasses 323+ , especially subclasses 332+ and 344+ provide for ore detection determination by electrical means, including the use of radio waves, except such methods and apparatus which involve the use of reflected or otherwise returned radio waves, the excepted subject matter being in this class (343), subclasses 5+. Class 324 provides for electrical testing methods and apparatus which include a test by means of radio waves and another electrical test. (See Lines With Other Classes, "Measuring and Testing," above.) |
327, | Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems, appropriate subclasses for miscellaneous circuits supplying current or potential to active devices such as an electron tube or circuits controlling the current or potential utilizing an active device such as an electron tube. |
329, | Demodulators, appropriate subclasses, for various types of demodulators for extracting the intelligence modulated on a high frequency wave. |
330, | Amplifiers, appropriate subclasses, for the various types of amplifier systems. |
331, | Oscillators, appropriate subclasses, for electric oscillation generators having utility in the radiant energy communication systems of Class 343. |
332, | Modulators, appropriate subclasses, for modulators, per se. (See Lines With Other Classes, Signaling, above). |
333, | Wave Transmission Lines and Networks, provides for wave transmission lines or networks, which may be used for communication purposes wherein the wave energy is guided or constrained by a wave propagating medium of appreciable electrical length with respect to the wave length of the propagated energy. For example, subclasses 1+ provides for plural channel systems and subclasses 236+ provides for single channel long lines having distributed electrical parameters, such as parallel conductors, wave guides, and shielded lines. This class also contains systems and networks useful in communication with radiant energy. See particularly subclasses 101+ for branched circuits with switching, subclasses 109+ for directional couplers, subclasses 117+ for hybrid type networks, subclass 13 for resonator type breakdown discharge systems, e.g., T-R or R-T systems, subclass 22 for dissipating terminations for long lines, subclasses 24+ for coupling networks including filters, equalizers, delay networks, and impedance matching networks, and subclass 81 for attenuators. (See Lines With Other Classes, Signaling, above). |
334, | Tuners, appropriate subclasses for tuner networks adapted for use in radiant energy systems. |
340, | Communications: Electrical, is the generic class for electric signaling. See subclasses 384.1+ for electrically operated audible signals such as bells and whistles. (See Lines With Other Classes, Signaling, above). |
342, | Communications: Radio Waves Systems and Devices (e.g., Radar, Radio Navigation), appropriate subclasses for whole radio wave systems and devices, or radio wave system or device components other than antennas. See the "SEARCH CLASS" references in Class 342 for the lines between radio wave communication and the subject matter of other classes. (See Class Definition, Statement of Class Subclass Matter.) |
345, | Computer Graphics Processing and Selective Visual Display Systems, subclasses 418 through 475for computer graphics processing. |
346, | Recorders, for recording systems and recorders, etc. |
348, | Television, appropriate subclasses for television systems whether the signals are transmitted by radiant energy or otherwise. (See Lines With Other Classes, Signaling, above). |
356, | Optics: Measuring and Testing, provides for measuring instruments and processes involving reflection, refraction, chromatic effects and other optical properties of light and materials, that is, for devices which utilize visible light and optical principles for the measurement of angles, distances, chromatic effects and the intensity of light, flaw analysis, and fiducial instruments not provided for elsewhere; see subclasses 3+ for range and height finders which utilize visible light, subclasses 27+ for velocity or velocity and height measuring apparatus, subclass 29 for the measurement of relative velocity of a remote object by means of apparatus having an optical element or a reticle, and subclasses 138+ for the measuring of angles or axial alignment by means of visible light. See subclasses 625 and 388+ for the mensuration or configuration analysis of areas, volumes or linear measurements of articles or indefinite length materials or the measurement of distance traveled by a scale or optical grid displaced relative to a remote fiducial mark. Search subclasses 43+ optical pyrometers for the determination of the temperature of bodies or the temperature of light radiation for photos: graphic purposes by means of relative intensity of radiation, color, or incandescence comparison and subclasses 213+ for apparatus to measure the intensity of light generally. (See Lines With Other Classes, "Measuring and Testing," above.) |
358, | Facsimile and Static Presentation Processing, appropriate subclasses facsimile systems whether the signals are transmitted by radiant energy or otherwise. (See Lines With Other Classes, Signaling, above). |
361, | Electricity: Electrical Systems and Devices, subclasses 173+ for photocell controlled relay and electromagnet circuits. |
362, | Illumination, appropriate subclasses for radiant energy controlled illuminating devices, see especially subclass 276 . |
367, | Communications, Electrical: Acoustic Wave Systems and Devices, is the residual class for electroacoustic wave signalling devices. (See Lines With Other Classes, "Signaling", above). |
367, | Communications, Electrical: Acoustic Wave Systems and Devices, appropriate subclass for means to transmit and receive sonic or supersonic waves. (See Class Definition, Statement of Class Subclass Matter.) |
367, | Communications, Electrical: Acoustic Wave Systems and Devices, provides for apparatus for detecting objects and/or determining their distance and/or direction which are provided with means to transmit and receive sonic or supersonic waves, the sonic or supersonic waves being either generated or received by electrical means. See subclasses 87+ for echo systems, subclasses 118+ for distance or direction finding, and subclasses 131+ for underwater systems. Note that the acoustics class has similar apparatus. (See Lines With Other Classes, "Measuring and Testing," above.) |
369, | Dynamic Information Storage or Retrieval, subclasses 6+ for a combined radio and phonography systems. (See Lines With Other Classes, Signaling, above). |
374, | Thermal Measuring and Testing, subclass 122 is drawn to determining the temperature of a body by use of a microwave arrangement to measure the thermal radiation emitted by the body. (See Lines With Other Classes, "Measuring and Testing," above.) |
375, | Pulse or Digital Communications, appropriate subclass for apparatus for the transmission or reception of pulses into or from free space, per se. (See Class Definition, Statement of Class Subclass Matter.) |
378, | X-Ray or Gamma Ray Systems or Devices, subclasses 44+ , 51+, and 70+ for X-ray systems used for testing. (See Lines With Other Classes, "Measuring and Testing," above.) |
382, | Image Analysis, appropriate subclass for pattern recognition or image processing. |
431, | Combustion, subclass 79 for a fuel burner controlled by a photoelectric type sensor. |
434, | Education, Demonstration, and Cryptography, subclasses 239+ for devices for instructing or training in the characteristics or operation of navigational aids, such as radio beacons, blind landing systems, direction finders, etc.; subclasses 1+ for devices for instructing or training in characteristics or operation of object detecting systems, such as radar or sonar systems; and subclass 222 for patents relating to instruction in the art of signaling, including instruction in the operation of radio transmitters and receivers. |
455, | Telecommunications, for analog modulated carrier wave and light wave communications. |
505, | Superconductor Technology: Apparatus, Material, Process, subclasses 150+ for high temperature (Tc > 30 K) superconducting devices, and particularly subclass 201 for antennas. |
700, | Data Processing: Generic Control Systems or Specific Applications, subclasses 1 through 89for generic data processing control systems; and subclasses 90-306 for particular application of data processing systems or calculating computers. |
701, | Data Processing: Vehicles, Navigation, and Relative Location, subclasses 200+ for the application of a computer in the area of navigation, particularly subclasses 207+ for position determining equipment, and subclasses 300+ for determining the relative location between two points. (See Lines With Other Classes, "Measuring and Testing," above.) |
704, | Data Processing: Speech Signal Processing, Linguistics, Language Translation and Audio Compression/Decompression, subclasses 200+ for artificial intelligence systems that process speech signals. |
706, | Data Processing: Intelligent Processing Systems and Methods, various subclasses for artificial intelligence systems that represent, apply, and acquire knowledge. |
708, | Electrical Computers: Arithmetic Processing and Calculating, subclasses 1+ for hybrid computers; subclasses 100+ for digital calculating computers; and subclasses 800+ for analog computers. |
715, | Data Processing: Presentation Processing of Document, Operator Interface Processing, and Screen Saver Display Processing, subclasses 700 through 866for computer operator interface processing. |
SECTION IV - GLOSSARY
ACTIVE ELEMENT
An element or network whose energy output is modified due to the presence of a source of energy in the element or network (other than the mere signal energy which passes through the network) or an element or network in which the energy output from a source of energy is controlled by the signal input.
ANTENNA ARRAY
A plurality of active antennas coupled to a common source or load to produce a directive radiation pattern. Usually the spatial relationship also contributes to the directivity of the antenna.
ANTENNA COMPONENT
A portion of the antenna performing a distinct function and limited for use in an antenna, as for example, a reflector, director or active antenna.
ANTENNA COUNTERPOISE
Structure of conductive material most closely associated with ground but insulated from or capacitively coupled to the natural ground, and aiding in the function of the natural ground, particularly where variations or limitations of the characteristics of the natural ground interfere with its proper function, and such structure being connected to the terminal of the signal receiver or source opposing the active antenna terminal.
ANTENNA COUPLING NETWORK
A passive network (which may be resistive, inductive or capacitive or any combination thereof) for transmitting the signal energy between the active antenna and a source or receiver of such signal energy.
ANTENNA GROUNDING STRUCTURE
Ground, or structure most closely associated with or simulating ground which is connected to the terminal of the signal receiver or source opposing the active antenna terminal, (i.e., the signal receiver or source is interposed between the active antenna and this structure), for establishing a reference potential level for operating the active antenna.
ANTENNA INHERENT REACTANCE
This includes not only the distributed reactance of the active antenna but also the natural reactance due to its location and surroundings, as for example, the capacity relation inherent in the position of the active antenna relative to ground.
ANTENNA LEAD-IN
A conductive means (transmission line, feed line) for conveying the signal energy between the active antenna and the signal source or receiver, and extending directly from the active antenna towards the source or receiver.
ANTENNA SHIELD
A conductive or low reluctance structure, such as a wire, plate or grid which is adapted to be placed in the vicinity of an active antenna to reduce, as by dissipation through a resistance or by conduction to ground, undesired electromagnetic radiation, or electric or magnetic fields, which are directed toward the active antenna from an external source or which emanate from the active antenna.
ANTENNA TUNING
Adjusting an inductance or capacity combined with the active antenna but distinct and separate therefrom, the inductance or capacity providing a reactance which combines with the inherent reactance of the active antenna to establish a resonance in a circuit including the active antenna, this resonance being at a frequency other than the natural electrical resonant frequency of the active antenna, adjustment of the inductance or capacity changing this resonance; or adjusting the length of an electrically long linear antenna to alter the electrical resonance of the antenna.
COMMUNICATION
The conveying or transferring of information; specifically a system, as radio, telephone, telegraph for conveying or transferring information. For a general statement of the classes which include communication devices, apparatus and systems,see section V below.
DIRECTOR
A conductive (usually metallic) structure (e.g., a rod) which reradiates into free space impinging electromagnetic radiation (waves) coming from or going to the active antenna, the velocity of the reradiated wave having a component in the direction of velocity of the impinging wave, thereby to modify the radiation pattern of the active antenna, there being no significant potential relationship between the active antenna and the conductive structure.
DISTANCE
The space between two points, which may be immediately juxtaposed or widely spaced.
ELECTROMAGNETIC WAVE POLARIZATION FILTER
Structure which acts directly on the electromagnetic wave to filter out wave energy of an undesired polarization and to pass wave energy of a desired polarization.
ELECTROMAGNETIC WAVE REFRACTOR
Structure which is shaped or positioned to delay or accelerate transmitted electromagnetic waves, passing through such structure, an amount which varies over the wave front, to alter the direction of propagation of the waves emitted from the structure with respect to the waves impinging on the structure, or to bring the wave to a focus, or to alter the wave front (such as to convert a spherical wave front to a planar wave front or vice versa).
FREE SPACE
Space where the movement of energy in any direction is substantially unimpeded, such as interplanetary space, the atmosphere, the ocean and other large bodies of water or the earth.
LOADED ANTENNA
An active antenna having an elongated portion of appreciable electrical length and having additional inductance or capacity directly in series or shunt with the elongated portion so as to modify the standing wave pattern existing along the portion or to change the effective electrical length of the portion.
MESSAGE
A signal used to convey intelligence, such as telegraph signals or telephone signals (e.g., speech). Message is used in more limited sense than signal for the purpose of classification in this class in that signal includes the transmission of control impulses for operation mechanism other than mere signal reproducers.
ORIENTING
Changing the direction of the antenna beam.
PARASITIC ELEMENT
A conductive (usually metallic) structure (e.g., rod) which reradiates into free space impinging electromagnetic radiation (waves) coming from or going to the active antenna, the velocity of the reradiated wave having a component which is in the same direction (director) as, or in the opposite direction (reflector) to, that of the velocity of the impinging wave.
RADIANT ENERGY
The energy (partially kinetic, partially potential) associated with waves produced in free space by a space by a source of energy, as light waves, electromagnetic radiations (including radio wave), neutron and similar radiation, subsonic, supersonic and sonic waves.
RADIATE
The emanation of energy into free space.
RADIO OR HERTZ WAVE
An electromagnetic wave whose frequency spectrum extends over a range from somewhat above the frequency of audible sound waves to somewhat below the frequency of heat and light waves. Values of 10 kilocyles and 30,000 megacyles have been given as the lower an upper limits of the range for radio waves, although values exist beyond these limits. Radio waves as here defined exclude compressional waves, light waves, heat waves, infrared waves, ultraviolet waves, X-rays, cathode rays, gamma rays, and ion beams. The radio waves are produced by oscillations of electric change in an antenna.
REFLECTOR
A conductive structure, usually metallic (e.g., screen, rod or plate) which reradiates back into free space impinging electromagnetic radiation (waves) coming from or going to the active antenna, the velocity of the returned wave having a component in a direction opposite to the direction of velocity of the impinging wave, thereby to modify the radiation of the active antenna, there being no significant potential relationship between the active antenna and the conductive structure.
RESTRICTED SPACE
A space or medium which tends to confine the energy within specified boundaries along a predetermined path, as wave guides, hollow resonators, conductive wires.
SCANNING
Repeatedly moving the antenna beam over an area in space.
SIGNAL
Control impulse, wave energy, intelligence or message conveyed, such as a sign, noise indication agreed upon, understood and used to convey intelligence at a distance.
SWEEPING
Moving the antenna beam repeatedly along a single line (which may be straight or curved) in space.
TELEGRAPHY
The transmission to a distance of signals, unlimited with respect to the extent of the message communicated, by the utilization of energy, the elements of the message being selected or composed at will according to a prearranged code.
TELEPHONY
The conversion of spoken or sound waves into energy which is transmitted a distance and reconverted into sound waves for reproduction of the speech or sounds.
SUBCLASSES
![]() | ANTENNAS | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
This subclass is indented under the class definition. Subject matter and limited by claimed subject matter to
coupling electrical energy between free space and restricted space,
i.e., the radiation or collection of such energy together with its
transmission to or from a transmitter or receiver, and not otherwise
classifiable.
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Having electric space discharge device | ||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna includes an electric
discharge device, the space discharge of this device serving as
a portion of the antenna or the antenna coupling.
SEE OR SEARCH CLASS:
| |||||||||||
![]() | With radio cabinet | ||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with the
cabinet which encloses the receiving or transmitting structure in
such manner that a significant relationship exists between the antenna
and cabinet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Measuring signal energy | ||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with structure
which tells the magnitude of the signal energy flowing to, in, or
from the antenna, and wherein a significant relationship exists
between the antenna and this measuring structure.
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | With ice clearer or preventer | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna includes means which
prevents or reduces ice, snow or sleet accumulation, such as heating
apparatus or material having a low freezing point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | With aircraft | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with,
or has at least a part in common with at least a part of, a device
peculiarity adapted to travel or be suspended in the air such as
an airplane, balloon, projectile, or guided missile, and wherein
a significant relationship exists between the device and the active
antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Lighter-than-air device | ||||||
This subclass is indented under subclass 705. Subject matter wherein at least a portion of the active
antenna is maintained in an elevated position by a lighter-than-air
device, e.g., balloon.
SEE OR SEARCH CLASS:
| |||||||
![]() | Trailing type | ||||||||||
This subclass is indented under subclass 705. Subject matter wherein the active antenna is an elongated
flexible mass suspended from the aircraft, or the active antenna
is suspended from the aircraft by an elongated flexible support
so that the antenna will trail from the aircraft as by the relative
motion between the aircraft and the surrounding air.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
![]() | Aircraft part of active antenna or vice versa | ||||||
This subclass is indented under subclass 705. Subject matter wherein the active antenna and the device
have a common portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Waterborne (e.g., buoyant or with watercraft) | ||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with,
or has at least a part in common with at least a part of a device
peculiarly adapted for travel or to be suspended in water, such
as a surface ship, submarine, torpedo, buoy or other floating structure
and wherein a significant relationship exists between the device
and the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
![]() | Watercraft part of active antenna or vice versa | ||||||
This subclass is indented under subclass 709. Subject matter wherein the active antenna and the device
have a common portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | With vehicle | ||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with,
or has at least a part in common with at least a part of, vehicle
structure or accessories peculiarly adapted for use with a vehicle,
and wherein a significant relationship exists between the antenna
and vehicle or accessory structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Vehicle part of active antenna or vice versa | ||||||||||||
This subclass is indented under subclass 711. Subject matter wherein the active antenna and vehicle structure
or accessory have a common portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Supported by vehicle body | ||||||||||||||||
This subclass is indented under subclass 711. Subject matter wherein the body of the vehicle serves as
a support or supporting base for the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Antenna adjustable from inside body | ||||||||||||||
This subclass is indented under subclass 713. Subject matter wherein the active antenna or a portion thereof
is movably supported on the vehicle body together with structure
controlled within the body for moving the antenna for such purposes
as adjusting the operative position of the antenna or moving the
antenna from an operative to an inoperative position, e.g., extending
or retracting a rod antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | Rod type | ||||||||
This subclass is indented under subclass 713. Subject matter wherein the active antenna is of the rod
type as defined in subclass 900, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | Running board |
This subclass is indented under subclass 713. Subject matter wherein the portion of the body supporting the antenna is the running board. | |
![]() | Supported underneath vehicle | ||||||
This subclass is indented under subclass 711. Subject matter wherein the antenna, when in operative position,
is supported under the vehicle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Body-attached or connected | ||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is shaped to fit the
body or to be supported by body, or including structure whereby
the antenna is secured to the body to be freely portable by the body
under operative conditions, or structure which enables the body
to operate as an antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Buried underground or submerged under water | ||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active portion of the antenna
is claimed to be at least partially buried under the ground or submerged
in water under operative conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Combined with diverse-type art device | ||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with other
devices or structures having an added purpose or independent utility
other than to perfect the antenna, i.e., the other devices or structures
are not directly related to the primary function of the antenna,
which is the emission or collection of electromagnetic wave energy
together with the conveying of such energy to or from the transmitter
or receiver leadin.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
![]() | Light | ||||||||||||
This subclass is indented under subclass 720. Subject matter wherein the diverse type art device is a
light.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | With lumped reactance filter in active antenna | ||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein an active antenna includes an elongated
portion having lumped inductance and capacity in series or shunt
with the active portion remote from the lead-in terminals to pass
a particular frequency or band of frequencies and to block another
frequency or band of frequencies.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
![]() | Single adjustable length electrically long linear antenna | ||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is a single end fed elongated
linear mass of appreciable electrical length, and is physically
adjustable in its length, usually for tuning the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||
![]() | Convertible to different antennas | ||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is constructed
so that it may be changed into a different species of active antenna
as, for example, by switching means connecting the active portion
or portions in a different arrangement to the source or load or
by adding to or removing part of the radiating or collecting element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
![]() | Plural separate diverse type | ||||||||||||||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter including two antennas each of different
type, whose active radio wave radiating or collecting elements are
physically separate and distinct.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||||||||||||||||||
![]() | Including balanced doublet and loop-type antennas | ||
This subclass is indented under subclass 725. Subject matter wherein one of the diverse type antennas
is of the loop type and one other of the diverse type antennas is
of the center-fed balanced doublet type, as defined in subclasses 741,
793, and 866, below.
| |||
![]() | Including balanced doublet-type antenna | ||
This subclass is indented under subclass 725. Subject matter wherein one of the diverse type antennas
is of the center-fed balanced doublet type as defined in subclass
793, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | Including loop-type antenna | ||||||||||||||||||
This subclass is indented under subclass 725. Subject matter wherein one of the diverse type antennas
is of the loop type as defined in subclasses 741 and 866 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
![]() | Plural diverse-type antennas using same active element | ||||||||||
This subclass is indented under subclass 700. Subject matter including two antennas each of different
type, whose active radio wave radiating or collecting elements are
at least partly in common.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Including balanced doublet-type antenna | ||||||||||||
This subclass is indented under subclass 729. Subject matter wherein one of the antennas is of the balanced
doublet type as classified in subclass 793, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Traveling wave type | ||||||||
This subclass is indented under subclass 700. Subject matter wherein an elongated conducting mass of appreciable
electrical length with respect to the wave length of the signal
energy (usually greater than a half-wave length) is coupled to free
space continuously along its length to transmit signal energy between
the mass and free space along its length; the mass being inherently
adapted to, or being arranged to, or including structure to give
the mass a delay or acceleration characteristic in the direction
of propagation of the radio wave in space to which the mass is coupled
so that the wave of electric energy conducted along the mass remains
in phase with the associated radio wave moving in space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Circular loop | ||||||
This subclass is indented under subclass 731. Subject matter wherein the elongated conducting mass forms
substantially a circle in a single plane.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Rhombic | ||||||||||||
This subclass is indented under subclass 731. Subject matter wherein the elongated conducting mass is
formed in two co-extensive portions, each portion being connected
at the corresponding end to a lead-in terminal, the portions diverging
and then converging to form a diamond or rhombus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | With feedback |
This subclass is indented under subclass 733. Subject matter including a circuit extending from the end of the conducting mass opposite the lead-in terminals around the mass to the antenna leadin or to associated circuitry for conveying, for example, the nonradicated energy back to the antenna input. | |
![]() | Balanced V | ||||||||||
This subclass is indented under subclass 731. Subject matter wherein the conducting mass is composed of
two diverging portions, each portion connected at the apex to a
transmitter or receiver in a balanced manner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Inverted V | ||||||||||||
This subclass is indented under subclass 731. Subject matter wherein the conducting mass is formed as
a V, and lying usually in a substantially vertical plane with the
apex of the V uppermost, and one end of the mass being connected
to an unbalanced lead-in terminal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Plural | ||||||||
This subclass is indented under subclass 731. At least two antennas, each above, which are independently
operable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | With reflecting transformer | ||
This subclass is indented under subclass 731. Subject matter wherein the conducting mass is composed of
two adjacent coextensive wires with a termination at the end opposite
the coupling end, a signal wave which is picked up by the wires
and which is conducted along the wires to the termination being
returned over the wires in phase opposition in the respective wires,
i.e., the wires are effective as a balanced line for this returned
energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | With terminating resistance at open end | ||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
a resistance at the end electrically remote from the lead-in terminal
to the transmitter or receiver, the resistance being connected to
form a closed electric loop across the transmitter or receiver.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Balanced type | ||||||||||||||||
This subclass is indented under subclass 739. Subject matter wherein the active antenna includes the return
circuit as an active portion thereof, thus forming two similar active
portions, which are connected respectively to balanced lead-in terminals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||
![]() | High frequency type loops | ||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a current path of appreciable electrical
length is arranged as a substantially closed active loop having
an appreciable electrical dimension between all opposing points
on the loop together with structure or proportions to maintain a
desired current distribution around the loop.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
![]() | Plural | ||||||
This subclass is indented under subclass 741. Subject matter including two or more loops, each as defined
in subclass 741 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Feed coupling at spaced points on loop | ||||||
This subclass is indented under subclass 741. Subject matter wherein the antenna feed line is connected
at two or more spaced points along the perimeter of the closed loop.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | With series reactance in loop | ||||||||||||||
This subclass is indented under subclass 741. Subject matter wherein the closed loop includes inductance
or capacity in series around the current path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | With variable reactance for tuning antenna | ||||||||||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
an adjustable inductance or capacity, distinct and separate from
the active antenna, the inductance or capacity providing a reactance
which combines with the inherent reactance of the active antenna
to establish a resonance in a circuit including the antenna, this
resonance being at a frequency other than the natural electrical
resonant frequency of the antenna, adjustment of the inductance
or capacity changing this resonance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||
![]() | Slot type | ||
This subclass is indented under subclass 745. Subject matter wherein the active antenna is of the slot
type as defined in subclass 767 below.
| |||
![]() | Balanced doublet type | ||||||
This subclass is indented under subclass 745. Subject matter wherein the active antenna is of the center-fed
balanced doublet type as defined in subclass 793 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Loop type | ||||||||
This subclass is indented under subclass 745. Subject matter wherein the active antenna is of the loop
type as defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | With lumped reactance for loading antenna | ||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a resonant active antenna includes
an elongated portion of appreciable electrical length having lumped
inductance or capacity directly in series or shunt with the elongated
portion (to modify the standing wave pattern existing along the
portion, or to change the effective electrical length of the portion).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||
![]() | Adjustable reactance | ||
This subclass is indented under subclass 749. Subject matter wherein the lumped inductance or capacity
is adjustable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | Plural antennas | ||
This subclass is indented under subclass 749. Subject matter including at least two antennas as defined
therein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | Reactance at free end of active antenna | ||||||
This subclass is indented under subclass 749. Subject matter wherein the lumped inductance or capacity
is connected at the free end of the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | With spaced or external radio wave refractor (e.g., lens) | ||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
structure spaced from or external to the active antenna which transmits
waves going to or from the active antenna, and is shaped or positioned
to delay or accelerate transmitted waves an amount which varies
over the wave front, to alter the direction or propagation of the
waves emitted from the structure with respect to the waves impinging
on the structure, or to bring the wave to a focus, or to alter the
wave front (such as to convert a spherical wave front to a planar
wave front or vice versa).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
![]() | With scanning, sweeping, or orienting | ||||||||||||||||||
This subclass is indented under subclass 753. Subject matter wherein structure is included which permits
or effects scanning, sweeping, or orienting of the antenna beam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
![]() | With reflector | ||||||||||||||||||
This subclass is indented under subclass 753. Subject matter including a reflector, or wherein the refractor
is also adapted to perform a reflecting function.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
![]() | With polarization filter or converter | ||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
structure which acts directly on the radio wave to filter out wave
energy of an undesired polarization or to modify the polarization
pattern of the wave.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | With means for moving directive antenna for scanning, sweeping or orienting | ||||||||||||||||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the complete antenna is movably (e.g.,
pivoted or rotatably) supported for motion as a unit or wherein
the reflector and antenna are supported to be relatively movable,
together with structure that effects or is peculiarly adapted to
effect motion of the antenna or relative motion between the antenna and
reflector in such fashion that the radiation pattern is scanned,
swept or oriented.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||
![]() | Plural relatively movable | ||||||
This subclass is indented under subclass 757. Subject matter combined with another relatively movable
antenna, together with structure that effects relative motion between
the complete antennas or between the active antenna portions or
the reflectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Spiral motion | ||||
This subclass is indented under subclass 757. Subject matter wherein the directive antenna is supported
for movement of the axis of its beam over a spiral path and wherein
the means for moving includes structure which causes the antenna
to move its beam axis cyclically over a spiral path.
SEE OR SEARCH CLASS:
| |||||
![]() | With signal, indicator or alarm | ||||||||||||||
This subclass is indented under subclass 757. Subject matter together with signal, alarm, or indicator
structure which is responsive to the scan, sweep or orientation
of the antenna, independent in its operation from the collected
or radiated signal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | Reflector and antenna relatively movable | ||||||||
This subclass is indented under subclass 757. Subject matter wherein the reflector and active antenna
are supported to be relatively movable, together with structure
that effects or is peculiarly adapted to effect relative motion
between the antenna and reflector element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Wave guide type antenna | ||||||
This subclass is indented under subclass 757. Subject matter wherein the active antenna is of the wave
guide type as defined in subclass 772 below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Rotary or rotary oscillatory motion | ||||||||||||||||
This subclass is indented under subclass 757. Subject matter wherein the antenna is rotatably supported
together with structure for imparting continuous or oscillating
angular motion to the complete antenna as a unit relative to its
support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Loop-type antenna | ||
This subclass is indented under subclass 763. Subject matter wherein the rotatable antenna is of the loop
type as defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | In different planes | ||
This subclass is indented under subclass 763. Subject matter wherein the antenna is supported for rotation
in different planes (i.e., rotatable about two or more angularly
disposed axes) together with structure for imparting continuous
or oscillating angular motion to the antenna as a unit in these
planes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | Motor-driven | ||||||||||||||||||||||||
This subclass is indented under subclass 763. Subject matter wherein the means imparting motion to the
antenna is a motor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||
![]() | Slot type | ||||||||||||||
This subclass is indented under subclass 700. Subject matter including a conducting surface, such as a
metallic sheet which may be flat or curved, and an aperture in the
surface, which may be completely surrounded by the surface or extended
inwardly from an edge of the surface, together with coupling means
which establishes a potential difference at spaced points along
the aperture or extracts received energy from these points, these
points usually being across the aperture, the surface furnishing
a conductive path between these spaced points to permit current
to flow therebetween.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | With periodic control of slot or coupling | ||||||||||||||
This subclass is indented under subclass 767. Subject matter wherein structure is provided for modifying
the transmission characteristic of a slot or its coupling, the structure
being normally operated in a cyclical or repetitive manner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | Ring-shaped slot | ||
This subclass is indented under subclass 767. Subject matter wherein the aperture is shaped as a narrow
annulus on a flat conducting surface or a band removed from the
wall of a conducting cylinder.
| |||
![]() | Plural | ||||||||||
This subclass is indented under subclass 767. Subject matter including two or more apertures in a surface,
or two or more surfaces each having at least one aperture, all as
defined in subclass 767, above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | With wave guide coupling | ||||||||||
This subclass is indented under subclass 770. Subject matter wherein at least one of the apertures is
combined with a wave guide (or resonant cavity) for energizing the
aperture or conducting energy therefrom.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Wave guide type (e.g., horn) | ||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a wave guide is provided between
free space and a generator or receiver of radio wave energy, or
between free space and a nonwave guide coupling or connecting structure
which establishes in or collects from the wave guide radio wave
energy, the wave guide constraining this energy in its passage to
or from free space, and being directly connected with free space
without any intervening nonwave guide coupling (such as a probe
and dipole).
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Biconical horn type | ||||||||||
This subclass is indented under subclass 772. Subject matter wherein the wave guide has its opposing surfaces
formed as conical or flared surfaces of revolution on a common axis,
the spacing between the surfaces increasing from the apices towards
the peripheries, the coupling to the source or collector extending
from the apices, as by a coaxial line or wave guide, through one
of the surfaces of revolution, the surfaces guiding the wave energy
between the apices and the peripheries.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Stacked | ||||
This subclass is indented under subclass 773. Subject matter wherein a plurality of bi-conical horn type
antennas as defined in subclass 773 above are spaced along a common
axis, their respective axes coinciding with the common axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | With reflector | ||||||||||||
This subclass is indented under subclass 773. Subject matter wherein the bi-conical horn type antenna
as therein defined is combined with external conductive structure
which reradiates into free space impinging radio waves coming from
or going to the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Plural | ||||||||||||
This subclass is indented under subclass 772. Subject matter wherein two or more wave guides are provided
at the connection to free space to result in two or more wave guide
paths each directly coupled to free space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | With control of individual antenna (e.g., lobe switching or steering) | ||||||||||||||
This subclass is indented under subclass 776. Subject matter wherein at least one antenna has in its wave
guide path or its coupling to the transmitter or receiver, structure
such as a switch or adjustable impedance, which alters the amplitude
or phase of the energy passing through the path or coupling to modify
the radiation or polarization pattern of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | With phasing | ||||||||
This subclass is indented under subclass 776. Subject matter wherein the wave guide or coupling path of
the respective antennas have significant phase characteristics in
the transmission of energy therethrough, to modify the relative
phase relationship of the transmitted radio wave energy of the respective
antennas at their coupling to space, or to modify the relative phase
relationship of the received radio wave energy in passing through
the antennas and/or coupling paths.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | With reflector | ||||||||
This subclass is indented under subclass 776. Subject matter wherein the plural wave guides as defined
therein are combined with external conductive structure (usually
metallic) which reradiates into free space impinging radio waves
coming from or going to the wave guides.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | "Pillbox" type | ||||||
This subclass is indented under subclass 772. Subject matter wherein the wave guide includes two parallel
plates which are closed along a portion of their perimeter by a
reflector, the spacing between the plates being small compared to
their surface dimensions, the plates being electrically open to
free space over a relatively large portion of their perimeter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | With external reflector or director | ||||||||||||||
This subclass is indented under subclass 772. Subject matter wherein the wave guide antenna as defined
therein is combined with external conductive structure (usually
metallic) which reradiates into free space impinging radio waves
coming from or going to the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | With means reducing re-radiation into active antenna | ||||||||||||
This subclass is indented under subclass 781. Subject matter wherein structure or arrangement is provided
to reduce reflection or the effect or reflection of the transmitted
wave energy from the reflector back into the active transmitting
antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | With internal-wave refraction means | ||||||||||
This subclass is indented under subclass 772. Subject matter wherein the wave guide contains a mass (usually
dielectric) which freely passes radio waves, and which is shaped
or positioned to delay or accelerate waves passing therethrough
an amount which varies over the wave front for such purposes as
focusing, changing direction, or changing the wave front as from
circular to planar.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
![]() | With closure | ||||||
This subclass is indented under subclass 772. Subject matter wherein the wave guide has a mass extending
across the wave guide adjacent the end coupling the wave guide to
free space, the mass being of material which freely passes electromagnetic
wave energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Dielectric type (e.g., polystyrene rod) | ||||||||||||
This subclass is indented under subclass 772. Subject matter wherein the wave guide is formed of an elongated
dielectric mass, which may be hollow, the source or receiver of energy
being adjacent one end of the mass and the coupling for radiation
to or from free space occurring along the sides or at the other
end.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | With horn | ||||||||||||||
This subclass is indented under subclass 772. Subject matter wherein the wave guide diverges, or flares,
in at least one dimension towards free space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | Including magnetic material | ||||||||||||
This subclass is indented under subclass 700. Subject matter including magnetic material which modifies
the inductance of the active portion of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Loop type | ||
This subclass is indented under subclass 787. Subject matter wherein the active antenna comprises a coil
of one or more turns adapted to be connected at its ends to a pair
of leadin terminals.
| |||
![]() | Within conductive apertured wall | ||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a definite space is provided beneath
an aperture in a conducting surface, and at least one antenna is
mounted in the space with its active portion at least partially beneath
the surface to transmit or receive radio wave energy when so mounted.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Active sleeve surrounds feed line | ||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein an active antenna element, which
may be a complete antenna or a portion of one (such as an arm of
a dipole), is formed as a cylinder, prisms, or frustum of a cone
or prism, or defines such a surface (such as series of circularly
arranged parallel wires), is combined with a feed line which supplies radiating
energy to or from this antenna element or to or from another antenna
element; and which enters the cylinder at one end and extends within
the cylinder at least a portion of the distance to the other end;
and where the feed line is electrically coupled to this cylinder the
coupling is remote from the entrance end, there being a substantial
insulating space between the inner surface of the sleeve and the portion
of the feed line extending within the cylinder.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
![]() | With coaxial active rod | ||||||||||||
This subclass is indented under subclass 790. Subject matter wherein an active rod, which may be hollow,
forms an extension of and is electrically connected to the feed
line and is coaxial with the active sleeve.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Doublet type | ||||
This subclass is indented under subclass 790. Subject matter wherein the sleeve is combined with a mass
having a substantially similar external shape, and wherein the sleeve
and mass are fed in balanced relation, at least one of the feed
lines extending from one end within the sleeve at least a portion
of the distance to the other end.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Logarithmically periodic | ||||||
This subclass is indented under subclass 700. Subject matter including a series of electrically coupled
radiating masses spaced along an axis of the antenna, the spacing
of the masses from a fixed point on the axis and a dimension of corresponding
masses progressively increasing along the axis in a manner approximating
a geometrical or logarithmic progression.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Balanced doublet - centerfed (e.g., dipole) | ||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein two active conducting masses, which
are substantially alike, are physically symmetrically disposed on
opposite sides of electrically balanced, antenna lead-in terminals,
each of the masses being connected to a respective terminal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||
![]() | Diverse-type doublets | ||||||||||
This subclass is indented under subclass 793. Subject matter including two doublets as defined respectively
in two of the subsequent subclasses 795, 801, 802, 803, 804, 805,
806, 808, 809, 811, and 823, or wherein two doublets each within
the scope of subclass 793 above, have structurally different radiating masses
to present significantly different electrical properties or radiation
properties.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Sheet or wing type | ||||||||||||||
This subclass is indented under subclass 793. Subject matter wherein the conductive masses are each formed
as a sheet, or each formed as a closed portion (e.g., closed loop)
defining a sheet-like surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | Helically or angularly staggered plural doublets | ||||||||||
This subclass is indented under subclass 793. Subject matter including a plurality of doublets spaced
along an axis, an adjacent two of these doublets being similar and
angularly spaced with respect to each other around the same axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Plural crossed (e.g., turnstile) | ||||
This subclass is indented under subclass 793. Subject matter including at least two like doublets, the
conductive masses of each doublet being elongated in shape and collinearly arranged,
the doublets crossing one another at their midpoints.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Plural groups (e.g., stacked) | ||||||||||
This subclass is indented under subclass 797. Subject matter wherein a plurality of doublets as therein
defined is combined with a second distinct plurality of doublets
as therein defined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Plural circumferentially arranged | ||||||||||||||||||||||||
This subclass is indented under subclass 793. Subject matter wherein at least three doublets have their
midpoints arranged on the circumference of a circle and equally
spaced around this circumference; or wherein three doublets so arranged
are disclosed in the specifications, and it is claimed that a plurality
of doublets have a circumferential arrangement, or are in circular
array, or are in cylindrical formation, or equivalent terminology;
or wherein at least two doublets are so arranged and have their arms
so curved that all the arms lie in a circle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||
![]() | Plural groups (e.g., stacked) | ||||||||||||||
This subclass is indented under subclass 799. Subject matter wherein a plurality of doublets as herein
defined is combined with a second distinct plurality of doublets
as therein defined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | Three or more collinear units form doublet | ||||||||||||||||||
This subclass is indented under subclass 793. Subject matter wherein the active conductive masses are
of elongated shape and are longitudinally divided into at least
three discrete portions which are substantially aligned along their
longitudinal axes.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
![]() | Distributed reactance added to arms | ||||||||||||||||||||
This subclass is indented under subclass 793. Subject matter wherein each conducting mass includes in
addition to its own inherent reactance a distributed reactance in
series or in shunt with the mass, at least a part of the distributed
reactance being spaced on the radiating mass from the antenna lead-in
terminals, i.e., the distributed reactance is not physically and
electrically entirely disposed between the conducting mass and the
antenna lead-in terminals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||
![]() | Folded | ||||
This subclass is indented under subclass 793. Subject matter wherein the two active conductive masses
include elongated conductors which extend outwardly from the antenna
lead in terminals together with an additional elongated conductor
or conductors extending along the length of and close to the first
conductors to form a transmission line therewith, the first and second
conductors being joined at the outer ends as by bending to present
a substantially increased radiation resistance at the antenna lead
in terminals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Multiple conductor type | ||||
This subclass is indented under subclass 803. Subject matter wherein the second conductors comprise a
plurality of conductors in parallel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Arms angularly adjustable (e.g., rabbit ears) | ||||
This subclass is indented under subclass 793. Subject matter wherein the two active conductive masses
are elongated and are supported adjacent the lead-in terminals by
structure permitting relative angular movement with respect to one
another, as by a pivot or hinge, for such purposes as folding or
electrically adjusting the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Bent arms (e.g., zigzag type) | ||||||||
This subclass is indented under subclass 793. Subject matter wherein each of the separate conductive masses
constitutes a rod having a bend or curve therein remote from the
lead-in terminal to constitute a change in direction of the rod,
and all portions on both sides of the bend being radiators or collectors
of radio wave energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Tapered, thick, or enlarged arms | ||||||||||||||||||||||
This subclass is indented under subclass 793. Subject matter wherein each mass constitutes an elongated
portion which is tapered, or significantly thickened or enlarged
over at least a portion of its length, such as a thick elongated rod,
cylinder, or cone, for impedance matching, broadbanding, or presenting
a larger area for wave energy radiation or collection.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
![]() | Plural-rod arm forming V (e.g., conical arrangement) | ||||||||||
This subclass is indented under subclass 793. Subject matter wherein each conductive mass is composed
of a plurality of straight linear rods which diverge from and are
electrically connected at a common point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Arms non-linearly arranged (e.g., resonant V type) | ||||||
This subclass is indented under subclass 793. Subject matter wherein the conductive masses are straight
and linear, and which are angularly disposed to form a V.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Plural | ||||||||||||||||||||||||||||
This subclass is indented under subclass 793. Subject matter including two or more separate and independent
doublets as therein defined.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||||
![]() | Fishbone-type array | ||||||||||
This subclass is indented under subclass 810. Subject matter wherein the respective arms of the doublets
are connected by two straight parallel closely spaced nonradiating
or noncollecting feed lines, the signal source or load being connected
at one end of these lines together with structure substantially
eliminating standing waves on these lines, as by terminating the end
of the lines opposite the signal source or load in a resistance
equal to the characteristic impedance of the lines.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Parallel arrangement | ||||
This subclass is indented under subclass 810. Subject matter wherein each arm of one doublet is physically
parallel to each arm of another doublet, the arms of these doublets being
substantially straight and linear.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Parallel and collinear arrangement | ||||||
This subclass is indented under subclass 812. Subject matter wherein in addition to the parallel arranged
doublets, a further doublet is provided, whose two arms together
with the two arms of one of the parallel arranged doublets lie along
a single straight line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | With coupling network | ||||||||||||||
This subclass is indented under subclass 812. Subject matter including a passive network (which may be
resistive, inductive or capacitive or any combination thereof) for
transmitting signal energy between the doublets and a source or
a receiver of such signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | With parasitic element (e.g., reflector or director) | ||||
This subclass is indented under subclass 812. Subject matter wherein the doublets are combined with conductive
structure (usually metallic, e.g., rod) which reradiates into free
space impinging radio waves coming from or going to the antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | With coupling network | ||||||||||||||
This subclass is indented under subclass 810. Subject matter including a passive network (which may be
resistive, inductive, or capacitive or any combination thereof)
for transmitting signal energy between the doublets and a source
or a receiver of such signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | With parasitic element (e.g., reflector or director) | ||||
This subclass is indented under subclass 810. Subject matter wherein the plural antennas are combined
with conductive structure which reradiates into free space impinging
radio waves coming from or going to the active antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | With parasitic element (e.g., reflector or director) | ||||||||||||||||
This subclass is indented under subclass 793. Subject matter wherein the two active conductive masses
are combined with conductive (usually metallic) structure (e.g.,
a rod) which reradiates into free space impinging radio waves coming
from or going to the antenna, the velocity of the reradiated wave
having a component which is in the same direction (director) as,
or in the opposite direction (reflector) to, that of the velocity
of the impinging wave.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||
![]() | With reflector and director | ||
This subclass is indented under subclass 818. Subject matter including both a director and reflector as
defined in the above subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | With coupling network or impedance in the leadin | ||||||||||||||||
This subclass is indented under subclass 793. Subject matter wherein the doublet antenna is combined with
a passive network (which may be resistive, inductive or capacitive
or any combination thereof) for transmitting signal energy between
the doublet and a source or receiver of such signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Balanced to unbalanced circuit | ||||
This subclass is indented under subclass 820. Subject matter wherein the passive coupling network includes
four terminals, one pair of which are connected to the balanced
doublet and the other pair being for connection to a source or receiver
of signal energy or a circuit network leading thereto; the impedance
across the pair of terminals connected to the balanced doublet being
symmetrical and the network impedance across the other pair of terminals being
asymmetrical with respect to a given potential plane (e.g., ground),
this latter impedance being effective to convert symmetrical potential
applied at the symmetrical pair of terminals (for connection to
the balanced doublet) to asymmetrical potential applied at the other pair
of terminals or vice versa.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
![]() | Impedance matching network | ||||||||
This subclass is indented under subclass 820. Subject matter wherein the passive coupling network includes
one or more impedance elements constructed or proportioned to substantially
eliminate the reflected wave energy between the doublet antenna
and the receiver or signal energy source, caused by impedance differences.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | Adjustable length | ||||||||
This subclass is indented under subclass 793. Subject matter wherein the overall physical length of the
two active conducting masses is adjustable, as by the length of
at least one of the masses being adjustable or by the relative spacing
of the masses being adjustable, for such purposes as tuning or collapsing
the doublet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Planar array of linear antennas | ||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a plurality of physically separate
straight linear radiating type conductors lie in a planar unique
surface; or the claims recite that the linear conductors are arranged
in a plane, or equivalent subject matter.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
![]() | Fractional, multiple, or full wave length linear type | ||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is a straight linear
conductor such as a rod, wire or stub and wherein the claims recite
a particular length, series of length, range of length, or limit
of length of this conductor in terms of its operating wave length,
or the claims recite a physical length in numerical terms (e.g.,
number of feet) and in the latter case the context of the disclosure
establishes that such terms are an appreciable part of the operating
wave length.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||||||||
![]() | Plural | ||||||||||||||||||||||
This subclass is indented under subclass 825. Subject matter including a plurality of physically separate
linear, radiating type conductors, at least one of the conductors
having a length as recited in subclass 825.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
![]() | Collinear arrangement | ||||||||||||
This subclass is indented under subclass 826. Subject matter wherein the linear conductors have their
longitudinal axes lying substantially on a common straight line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Non-uniformity in antenna | ||||||||||||||
This subclass is indented under subclass 825. Subject matter wherein the linear antenna has an abrupt
change in its cross-sectional dimension or has a substantially nonradiating
branch.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | With grounding structure, including counterpoises | ||||||||||
This subclass is indented under subclass 825. Subject matter together with structure including ground
or structure most closely associated with or simulating ground,
and such structure being connected to the terminal of the signal receiver
or source opposing the active antenna terminal (i.e., having the
signal receiver or source interposed between the active antenna and
this structure), for establishing a reference potential level for
operating the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | With coaxial feed line | ||
This subclass is indented under subclass 829. Subject matter including a coaxial feed line, the active
antenna being connected to the inner conductor at the end of this
line and the grounding structure being connected to the outer conductor
at the end of this line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | Stub type | ||||||||||
This subclass is indented under subclass 825. Subject matter wherein the linear conductor is thickened
or enlarged in cross section to produce such shapes as cylindrical,
conical, diamond, double diamond, and spheroidal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Active antenna as reflector | ||
This subclass is indented under subclass 700. Subject matter wherein the claimed subject matter includes
an active antenna designated as a reflector, or includes an energized
or active reflector (i.e., coupled to a signal source or to a receiver).
| |||
![]() | Antenna with parasitic director | ||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
conductive (usually metallic) structure, (e.g., a rod) which reradiates
into free space impinging radio waves coming from or going to the
active antenna, the velocity of the reradiated wave having a component
in the direction of velocity of the impinging wave, thereby to modify
the radiation pattern of the active antenna, there being no significant potential
relationship between the active antenna and the conductive structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Antenna with parasitic reflector | ||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein an active antenna is combined with
conductive structure (usually metallic, e.g., screen rod or plate)
which returns or reradiates back into free space impinging radio
waves coming from or going to the active antenna, the velocity of
the returned wave having a component in a direction opposite to
the direction of velocity of the impinging wave, thereby to modify
the radiation pattern of the active antenna, there being no significant
potential relationship between the active antenna and the conductive
structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||||
![]() | Plural active antennas | ||||||||
This subclass is indented under subclass 834. Subject matter including two or more active antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Plural reflectors | ||
This subclass is indented under subclass 835. Subject matter including two or more reflectors as defined
in subclass 834.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | Plural reflectors | ||||
This subclass is indented under subclass 834. Subject matter including two or more reflectors as defined
in subclass 834 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Including a screening reflector | ||||||||
This subclass is indented under subclass 837. Subject matter wherein a first reflector is positioned behind
an active antenna and a second reflector (screen reflector) is positioned
in front of the antenna, the second reflector redirecting diverging
rays emanating from the active antenna in transmission, and shielding
the active antenna in reception from undesired energy when coming
from a direction other than that of the desired received energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Reflector and active antenna relatively movable | ||||||||||
This subclass is indented under subclass 834. Subject matter wherein means are provided permitting relative
movement or adjustment between the reflector or a part thereof and
the active antenna or a part thereof under operative conditions.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Parabolic-type reflector with active antenna at focus | ||||||
This subclass is indented under subclass 834. Subject matter wherein the reflector presents a reflecting
surface having a parabolic contour in at least one plane, and the
active antenna is positioned at the focus of the parabola.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | With electrical shield | ||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a conductive or low reluctance structure,
such as a wire, plate, or grid, is combined with the antenna to
reduce, as by dissipation through a resistance or by conduction
to ground, undesired radiation, or electric or magnetic fields,
which are directed toward the antenna from an external source, or which
emanate from the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
![]() | Loop-type antenna | ||||||
This subclass is indented under subclass 841. Subject matter wherein the antenna is of the loop type as
defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
![]() | Having an appreciable wave length dimension | ||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the claims recite the active antenna
or portion, section, or part thereof as having a dimension which
is a fractional part or multiple (including unity) of the operating
wave length of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | Plural antennas spaced a fractional or full wave length apart | ||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter including a plurality of antennas spaced
a physical distance apart, which distance is an appreciable part
of a wave length or number of wave lengths at the operating frequency
of the antennas; or including a plurality of antennas combined with
structure which of necessity results in the antennas being spaced
a physical distance apart, which distance is an appreciable part
of a wave length or number of wave lengths at the operating frequency
of the antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||
![]() | With ground connection spaced from feed line connection | ||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna has a connection to ground
at some point on the antenna physically or electrically spaced on
the antenna from the point of connection of the transmitter or receiver
leadin to the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | With grounding structure (including counterpoises) | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the active antenna is combined with
structure including ground or structure most closely associated
with or simulating ground, and such structure being connected to
the terminal of the signal receiver or source opposing the active
antenna terminal (i.e., having the signal receiver or source interposed
between the active antenna and this structure), for establishing
a reference potential level for operating the active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Insulated from or capacity coupled to ground | ||
This subclass is indented under subclass 846. Subject matter wherein the structure most closely associated
with ground is insulated from or capacitively coupled to the natural ground
to aid in the function of the natural ground, particularly where
variations or limitations of the characteristics of the natural ground
interfere with its proper function.
| |||
![]() | Artificial or substitute grounds (e.g., ground planes) | ||||||
This subclass is indented under subclass 846. Subject matter wherein the grounding structure for the antenna
includes conductive structure used in place of the earth and which
grounding structure is distinct from the earth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Modified natural grounds | ||||
This subclass is indented under subclass 846. Subject matter wherein the natural earth ground is modified
by the addition of structure or material in direct contact with
or within the earth to modify or maintain the radiation reflecting
or absorbing characteristics or electrical conducting properties
of the natural ground.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
![]() | With coupling network or impedance in the leadin | ||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein an active antenna is combined with
a passive network (which may be resistive, inductive, or capacitive
or any combination thereof) for transmitting the signal energy between
the active antenna and a source or receiver of such signal energy.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
![]() | With radiation suppressor (e.g., shield) | ||||||||||||||||||||||||||||||||
This subclass is indented under subclass 850. Subject matter wherein the coupling network, or the leadin
associated with the coupling network includes structure or is arranged
for minimizing undesired radiation effects to or from the coupling
network or the leadin.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||
![]() | Plural path with impedance matching | ||||||||||||
This subclass is indented under subclass 850. Subject matter including a plurality of interrelated signal
paths of which the passive coupling network is at least a part,
and wherein the circuit elements of this arrangement are positioned
and proportioned to reduce wave reflections arising from the interrelation
of the signal paths.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | With plural antennas | ||||||||||||
This subclass is indented under subclass 850. Subject matter including a plurality of antennas and a passive
coupling network or a combination of such networks, the antennas
being directly connected to such network or networks.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Loop antennas | ||||||
This subclass is indented under subclass 853. Subject matter wherein the antennas are of the loop type
as defined in subclass 866, below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||
![]() | Antenna forms transformer primary or secondary | ||||||||
This subclass is indented under subclass 850. Subject matter wherein the active antenna forms the secondary
or primary winding of a transformer magnetically coupled from a
primary or to a secondary winding for connecting from or to a signal
source or receiver, respectively.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | Coupling at spaced points on antenna | ||||||||
This subclass is indented under subclass 850. Subject matter wherein the coupling network includes a plurality
of electrical paths, which may include a balanced path, connected
to physically spaced points on the active portion of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Coupled to plural leadins | ||||||||||||||
This subclass is indented under subclass 850. Subject matter wherein the passive network has one termination
to which an antenna is connected, and has in addition a plurality
of distinct terminations, adapted to be connected to a plurality
of transmitters and/or receivers; the coupling network
providing a branched electrical path from the antenna termination
to the other terminations.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | Balanced to unbalanced circuit | ||||||||
This subclass is indented under subclass 850. Subject matter wherein the passive coupling network includes
four terminals, one pair of which are for connection to the antenna
and the other pair for connection to a source or receiver of signal
energy; the network impedance across one pair of terminals being
symmetrical and the network impedance across the other pair of terminals
being unsymmetrical with respect to a given potential plane (e.g.,
ground), these impedances being effective to convert symmetrical
potential applied at the symmetrical pair of terminals to unsymmetrical
potential at the other pair of terminals or vice versa.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | Impedance matching network | ||||||||||
This subclass is indented under subclass 850. Subject matter wherein the passive coupling network includes
one or more impedance elements constructed or proportioned to substantially
eliminate the reflected wave energy between the antenna and the
receiver or signal energy source, caused by impedance differences.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
![]() | Adjustable | ||||||||||||
This subclass is indented under subclass 860. Subject matter wherein at least one of the impedance elements
has an adjustable electrical characteristic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Including long line element | ||||
This subclass is indented under subclass 860. Subject matter under the definition of ... in which at
least one of the elements of the impedance matching network has
distributed electrical parameters.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||
![]() | Tapered | ||
This subclass is indented under subclass 862. Subject matter wherein the distributed parameter electrical
element of the impedance matching network lies along the path of
wave propagation through the network and has a physical dimension
progressively increasing or decreasing along the path of propagation
to result in a corresponding change in electrical parameters of
the distributed parameter element.
SEE OR SEARCH CLASS:
| |||
![]() | Quarter-wave transformer | ||
This subclass is indented under subclass 862. Subject matter wherein the impedance matching network element
having distributed electrical parameters lies along the path of
wave propagation through the network and is an odd integral number
(including unity) of quarter-wave lengths long.
SEE OR SEARCH CLASS:
| |||
![]() | Balanced coupling network to balanced antenna | ||||||||||||||||||||
This subclass is indented under subclass 850. Subject matter wherein the coupling network and antenna
are electrically balanced.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Loop type | ||||||||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter including a coil of one or more turns adapted
to be connected at its ends to a pair of lead-in terminals, and
further adapted to establish in or receive from space radio wave energy
together with a frame for establishing a particular shape or pattern
of shapes for the coil, or the coil has sufficient rigidity to establish
a shape without the frame.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||
![]() | Plural; plural or tapped coils | ||||||||||||
This subclass is indented under subclass 866. Subject matter including a plurality of distinct coils or
windings, or including one or more taps on a coil or winding to
vary the effective number of coil or winding turns; or including
a plurality of loop type antennas as defined in subclass 866 above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Adjustable configuration, area or coil length | ||||||||||
This subclass is indented under subclass 866. Subject matter wherein a coil or winding and/or
the frame of a single loop type antenna is formed of flexible or
relatively movable parts to permit change in the shape, area, or
length of the coil or winding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
![]() | With rotatable support | ||||||||||||
This subclass is indented under subclass 866. Subject matter wherein a support for the loop antenna is
provided, which permits the antenna to be rotated about at least
one axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | With connector or terminals | ||||||||||||
This subclass is indented under subclass 866. Subject matter wherein the loop type antenna is combined
with an electrical connector or terminals whereby the winding of
the loop may be connected or coupled to other apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | With collapsible or foldable frame | ||||||||||||||
This subclass is indented under subclass 866. Subject matter wherein the frame is composed of relatively
movable parts or is of flexible material so that the loop may be
folded or collapsed to occupy less space as when it is not in use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | With housing or protective covering | ||||||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a unitary covering or housing is
provided which substantially surrounds the antenna in operation,
and which freely passes radio waves so as not to interfere materially
with the transmission or reception of the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||
![]() | Antenna embedded, potted, or coated | ||||||
This subclass is indented under subclass 872. Subject matter wherein the antenna is embedded or potted
in, or coated by a protective cover or support.
SEE OR SEARCH CLASS:
| |||||||
![]() | Mast or tower type | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter including a tower or mast which transmits
or receives radio waves; the tower or mast having structure which
facilitates this transmission or reception of radio waves, or the tower
or mast serving, in addition, as a support for other radio wave
radiating or receiving structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Sectional | ||
This subclass is indented under subclass 874. Subject matter wherein the antenna mast or tower is composed
of multiple discrete vertical sections.
SEE OR SEARCH CLASS:
| |||
![]() | Switching between antennas and lines | ||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter including an antenna and a switch for electrically
connecting the antenna selectively to two or more lines, or including two
or more antennas and a switch for connecting a line selectively
to these antennas, or including a plurality of antennas and a switch for
making selective connections among these antennas and a plurality
of lines.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||
![]() | With reel for antenna | ||||||||||||||||||||
This subclass is indented under subclass 700. Antennas together with a reel on which the antenna may be
wound.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | With support for antenna, reflector or director | ||||||||||||||||||||||||||
This subclass is indented under subclass 700. Antennas including structure for maintaining the antennas
or parts thereof in a fixed position or path of movement (adjustable)
with respect to some other body or the earth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||
![]() | For plural separate antennas | ||||||||||||||||||
This subclass is indented under subclass 878. Subject matter wherein the support is peculiarly adapted
to support two or more separate and distinct antennas.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||
![]() | Adjustable or collapsible support | ||||||||||||||||||||||||||||
This subclass is indented under subclass 878. Subject matter wherein the support is composed of multiple
parts which are relatively movable or adapted to receive the antenna
to permit adjustment, collapse, or knock-down of the support and/or
the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||
![]() | Foldable | ||||||||
This subclass is indented under subclass 880. Subject matter wherein the support is composed of multiple
parts which are so joined together that the parts have different
relative positions in use and non-use to permit the antenna to be
folded into a more compact space when not in use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | Pivoted or rotatable | ||||||||||||||||||||||
This subclass is indented under subclass 880. Subject matter wherein the support has parts relatively
pivoted or rotatable to permit the antenna mounted on one of the
parts to be pivoted or rotated, or the support receives the antenna
in pivoted or rotatable relation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||
![]() | Telescoping | ||||||||||||||||
This subclass is indented under subclass 880. Subject matter wherein the support is constructed of multiple
sections capable of sliding motion within each other to be extensible
or retractable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Plural wire transmission line or wave guide as support | ||||||||
This subclass is indented under subclass 878. Subject matter wherein the support for the antenna also
constitutes a transmission line, such as a coaxial line or wave
guide, for feeding the signal energy to or from the antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||
![]() | Stress distributing or static discharging means for support | ||||
This subclass is indented under subclass 878. Subject matter combined with means to modify the electrical
characteristics of the support.
SEE OR SEARCH CLASS:
| |||||
![]() | Horizontally suspended between poles or standards | ||||||
This subclass is indented under subclass 878. Subject matter wherein the support includes two or more
spaced apart poles, standards, or other upright members which maintain
an antenna or antenna component therebetween in a substantially
horizontal and elevated position.
SEE OR SEARCH CLASS:
| |||||||
![]() | Streamline-shaped support | ||||||||
This subclass is indented under subclass 878. Subject matter where the support for the antenna or reflector
has a stream-line configuration to permit an unbroken flow of fluid
past the support free from turbulence and with the least resistance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | For supporting rod-like end portion of antenna | ||||||||||||||||||||
This subclass is indented under subclass 878. Subject matter wherein the supported antenna has a rod-like
end portion, and the support is peculiarly adapted to engage this
rod-like end portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Rod retractible into support | ||||||||||||||
This subclass is indented under subclass 888. Subject matter wherein the rod type antenna is retractable
into the end supporting means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | Antenna on post, standard or tower | ||||||||||||||||
This subclass is indented under subclass 878. Subject matter wherein the support includes a post, standard
or tower extending vertically to maintain the antenna or component
thereof in an elevated position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||
![]() | Antenna along length of post | ||||
This subclass is indented under subclass 890. Subject matter wherein the post, standard or tower has an
antenna wire extending along its length, and constitutes the sole
support for the wire.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Antenna on bracket | ||||||
This subclass is indented under subclass 878. Subject matter wherein the support is an overhanging structure
attached to and projecting from some body such as a wall or post
and engages the antenna or a component thereof outside the body,
and is laterally offset from or suspended from the body to maintain
the antenna or component in a fixed position or path of movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||
![]() | Plural antennas | ||||||||||||||||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Combinations of two or more antennas and not specially provided
for above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||
![]() | With signal, indicator or alarm | ||||||||||||||||||||
This subclass is indented under subclass 700. Antennas having a signal, indicator or alarm responsive
to a condition of the antenna or its components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Spiral or helical type | ||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna includes a wound conductor,
and the winding advances in a single plane (spiral), or over a surface
of a solid such as cylinder (helix) or sphere.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Rods or wire form cage or hollow post | ||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is formed of conductive
rods, wires or mesh screens enclosing a space and wherein such rods,
wires or screens are connected together galvanically to form a single
electrical mass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||
![]() | Mesh, woven, braided or multiple strip | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is formed of conductive
strips or strands in mesh, braided, or woven form, or interwoven
with non-conductor strips or strands, or wherein the antenna is
formed of multiple conductive strips in sheet or planar form not
provided for elsewhere.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Hollow metallic body | ||||||||||||
This subclass is indented under subclass 700. Subject matter wherein a substantial portion of the active
antenna is hollow and of metal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||
![]() | Having area increasing means (e.g., spiniferous, metal ball on top) | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is so formed as to present
a larger surface to the radio wave transmitting medium; or wherein additional
elements are combined with the antenna for increasing the surface
presented to the radio wave propagating medium; or wherein elements
are provided which are adapted to be electrically connected to the antenna
to increase the surface presented to the radio wave propagating
medium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||||||||||||
![]() | Rod type | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is of substantially fixed
or stiff elongated form of no claimed significant electrical length.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | Telescoping | ||||||||||||||
This subclass is indented under subclass 900. Subject matter wherein the elongated antenna is composed
of multiple sections capable of sliding motion within each other
to be extensible or retractable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||
![]() | Fluid pressure actuated | ||||||||||
This subclass is indented under subclass 901. Subject matter including structure which provides adjustment
of the telescoping position of the antenna sections in response
to change in the pressure of a fluid.
SEE OR SEARCH CLASS:
| |||||||||||
![]() | Flexible rod actuated | ||||||||||||
This subclass is indented under subclass 901. Subject matter including a flexible rod for adjusting the
telescoping position of the antenna sections in response to movement
of the rod.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||
![]() | Combined | ||||||||||||||||||||
This subclass is indented under subclass 700. Subject matter wherein the antenna is combined with other
structure which perfects it, and which combinations are not provided
for above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | With transmission line | ||||||||
This subclass is indented under subclass 904. Subject matter wherein the other structure includes a transmission
line.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||
![]() | With electrical connector | ||||||||||
This subclass is indented under subclass 904. Subject matter combined with electrical connector structure
for connecting an antenna to transmission or feed lines or other
apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||
![]() | Antenna components | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
This subclass is indented under subclass 700. Components and elements not constituting a complete antenna
which are limited to use in antennas and which are not provided
for in any preceding subclass or in any other class.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() | Active antenna component of particular shape | ||||||||||||||||||||||||||||||||
This subclass is indented under subclass 907. Subject matter wherein the conductor or other component
of the active antenna has a distinctive contour or shape.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||||||||||||||
![]() | Refracting means and radio wave energy filters (e.g., lenses and polarizers) | ||||||||||||||||||
This subclass is indented under subclass 907. Subject matter including components which transmit therethrough
a radio wave which impinges thereon from space and returns the wave
to space after it has passed through and which modify the wave in
transmission therethrough usually by delaying or accelerating some
portions of the wave more than others, as follows: (1) alters the
direction of propagation of the wave, as by refraction; (2) brings
the wave front to a focus or converts a plane wave front to a spherical
wave front or vice versa (3) changes the type of polarization, e.g.,
converts a plane polarized wave to a circularly polarized wave,
or rotates the plane of polarization; (4) filters one or more polarization
components (5) filters one or more frequency components.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||
![]() | Zoned type | ||
This subclass is indented under subclass 909. Subject matter wherein the component presents to the wave
front a propagating medium whose surface offers abrupt changes in
propagating characteristic.
| |||
![]() | Dielectric type | ||
This subclass is indented under subclass 909. Subject matter wherein the component includes in the propagating
path a material having a significant dielectric characteristic.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||
![]() | Reflector or director | ||||||||||||||||||||
This subclass is indented under subclass 907. Subject matter wherein the component constitutes a conductive
structure (usually metallic) which is adapted to return or to reradiate
into free space a substantial portion of the impinging radio wave
energy coming from or going to an associated active antenna.
SEE OR SEARCH THIS CLASS, SUBCLASS:
SEE OR SEARCH CLASS:
| |||||||||||||||||||||
![]() | With impedance | ||||
This subclass is indented under subclass 912. Subject matter wherein the reflector or director is combined
with an impedance connected or coupled to the reflector or director.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
![]() | Diverse curvature |
This subclass is indented under subclass 912. Subject matter wherein different portions of the reflector or director surface have different curvatures, e.g., paraboloidal, plane, spherical or cylindrical. | |
![]() | Collapsible, foldable or adjustable | ||||||||||
This subclass is indented under subclass 912. Subject matter wherein the reflector or director is composed
of relatively movable parts for collapsing, folding or adjusting
the reflector or director; so that it may occupy a smaller space or
the curvature of its surface may be changed, or its electrical characteristics
may be varied.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||||||||
![]() | Made of detachable parts | ||||
This subclass is indented under subclass 912. Subject matter wherein the reflector or director is composed
of parts which may readily be assembled or disassembled.
SEE OR SEARCH THIS CLASS, SUBCLASS:
| |||||
This page is produced by the Office of Classification Support (Office of Patent Classification) for the Reference Tools Project.
Please send questions and comments to usptoinfo@uspto.gov .
Note: The Patent and Trademark Depository Library Program (PTDLP) administers a nationwide network of public, state and academic libraries designated as Patent and Trademark Depository Libraries authorized by 35 U.S.C. 13 to: Disseminate Patent and Trademark Information Support Diverse Intellectual Property Needs of the Public. PTDL Contact Information
Note: For information/comments on electronic information products, such as purchasing USPTO data, or to discuss system requirements for magnetic tape products, contact:
Information Products Division -- U.S. Patent and Trademark Office
Information Products Division
Contact Information
Or, browse
their on-line catalog.
The Inventors Assistance Center is available to help you on patent matters.Send questions about USPTO programs and services to the USPTO Contact Center (UCC). You can suggest USPTO webpages or material you would like featured on this section by E-mail to the webmaster@uspto.gov. While we cannot promise to accommodate all requests, your suggestions will be considered and may lead to other improvements on the website. |
|