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PERSONNEL

 

Dr. Richard Q. Lee
Institution: NASA John. H. Glenn Research Center at Lewis Field
Role: Senior Engineer
E-mail: Richard.Q.Lee@nasa.gov

BIO

Dr. Richard Q. Lee is a senior engineer in the Antenna, Microwave, and Optical Systems Branch at the National Aeronautics and Space Administration’s Glenn Research Center at Lewis Field in Cleveland, Ohio. At present, he is the principal investigator or co-investigator of projects on integrated phased-array antennas and solar cell systems, development of a hybrid ground phased-array prototype based on space-fed lens technology, development of ultrawideband conformal optically transparent antennas, and coupled local oscillators for Ka-band beam-steerable active integrated antennas.

Dr. Lee earned his bachelor’s and master’s degrees in electrical engineering from the University of Illinois, and his doctoral degree in electrical engineering from Michigan State University. At NASA, he has worked to develop printed circuit antennas and phased-array antennas for satellite communications applications. As contract manager, he has contributed to the successful completion of several antenna and array projects, including the development and demonstration of the Ka-band Monolithic Microwave Integrated Circuit (MMIC) phased array with the Advanced Communications Technology Satellite (ACTS). Dr. Lee’s other contributions cover a spectrum of fundamental and application studies of microstrip antennas. These include optically transparent printed antennas, cross-polarization characteristics of rectangular patch antennas, coplanar parasitic subarrays, multilayer microstrip antennas, coplanar waveguide feeding techniques, dielectric resonator antennas, and tapered slot antennas. His best known work is the use of parasitic elements to increase the bandwidth and gain of microstrip antennas. He is the author and coauthor of over 140 journal and conference papers, and several book chapters on printed antenna technology. He is also the co-inventor of a patent on optically transparent printed antennas. Dr. Lee came to NASA Glenn in 1980.


PUBLICATIONS

Lo, Y.T.; Lee, S.W.; and Lee, Q.H.: Optimization of Directivity and Signal-to-Noise Ratio of an Arbitrary Antenna Array. IEEE Proc., vol. 54, no. 8, 1966.

Asmussen, J. Jr.; and Lee, Q.H.: Parametric Amplification in an RF Sustained Plasma Capacitor. Appl. Phys. Letters, vol. 15, no. 6, 1969.

Asmussen, J., Jr.; and Lee, R.Q.: Parametric Amplification and Frequency Modulation in a Microwave Sustained Plasma Capacitor. IEEE/AP-S International Symposium Digest,1969.

Asmussen, J., Jr.; and Lee, Q.H.: The Observation of Coupling Between Low- and High-Frequency Resonance in a Bounded Plasma. IEEE Proc., vol. 57, no. 12, 1969.

Asmussen, J., Jr.; and Lee, Q.H.: An Experimental Study of Cold Plasma and Temperature Resonance at High RF Power. IEEE/AP-S International Symposium, 1970.

Asmussen, J., Jr.; and Lee, Q.H.: The Experimental Impedance of a Cold Plasma in Resonance. Bull. Am. Phys. Soc., vol. 15, 1970.

Lee, R.Q.; and Nakanishi, S.: Recent Work on an RF Ion Thruster. AIAA Fifth International Electrical Propulsion Conference Proceedings, 1981.

Acosta, R.; and Lee, R.Q.: Case Study of Sample Spacing in Planar Near-Field Measurement of High Gain Antenna. Proceedings of the 1984 Antenna Applications Symposium, Monticello, IL, 1984.

Lo, Y.T.; Engst, B.; and Lee, R.Q.: Circularly Polarized Microstrip Antennas. Proceedings of the 1984 Antenna Applications Symposium, Monticello, IL, 1984.

Oberhart, M.L.; Lo, Y.T.; and Lee, R.Q.: A Study of Design Consideration for Low Cross Polarization Four Element Microstrip Antenna Array Modules. Proceedings of the 1985 Antenna Applications Symposium, Monticello, IL, 1985.

Lee, R.Q.; and Baddour, M.F.: A Dual Frequency Microstrip Antenna for Ka Band. Proceedings of the 1985 Antenna Applications Symposium, Monticello, IL, 1985.

Lee, R.Q.; and Acosta, R.: A Numerical Method for Approximating Antenna Surfaces Defined by Discrete Surface Points. Proceedings of the 1985 Antenna Applications Symposium, Monticello, IL, 1985.

Lee, R.Q.; Smetana, J.; and Acosta, R.: A Design Concept for an MMIC Microstrip Phased Array. Proceedings of the 1986 Antenna Applications Symposium, Monticello, IL, 1986.

Lee, R.Q.: Swept Frequency Technique for Dispersion Measurement of Microstrip Lines. Proceedings of the 1986 Antenna Applications Symposium, Monticello, IL, 1986.

Lee, R.Q.; Lee, K.F.; and Bobinchak, J.: Characteristics of a Two-Layer Electromagnetically Coupled Rectangular Patch Antenna. Electr. Lett., vol. 23, no. 20, 1987.

Lee, R.Q.; Acosta, R.; and Lee, K.F.: Radiation Characteristics of Microstrip Arrays With Parasitic Elements. Electr. Lett., vol. 23, no. 16, 1987.

Lee, R.Q.; Acosta, R.; Dahele, J.S.; and Lee, K.F.: An Experimental Investigation of Parasitic Microstrip Arrays. Proceedings of the 1987 Antenna Application Symposium, Monticello, IL, 1987.

Oberhart, M.L.; Lo, Y.T.; and Lee, R.Q.: New Simple Feed Network for an Array of Four Microstrip Elements. Electr. Lett., vol. 23, no. 9, 1987.

Lee, K.F.; Acosta, R.; and Lee, R.Q.: Microstrip Antenna Array With Parasitic Elements. IEEE/AP-S International Symposium Digest, 1987.

Lee, R.Q.; and Baddour, M.F.: Absolute Gain Measurement by the Image Method Under Mismatched Condition. IEEE/AP-S International Symposium Digest, 1987.

Lee, R.Q.; Lee, K.F.; and Bobinchak, J.: Electromagnetically Coupled Rectangular Patch Antenna. Journees Internationales De Nice Sur Les Antenaes, Nice, France, 1988.

Lo, Y.T.; Engst, B.; and Lee, R.Q.: Simplified Design Formulas for Circularly Polarised Microstrip Antennas. IEEE Proc., vol. 135, no. 3, 1988.

Huynh, T.; Lee, K.F.; and Lee, R.Q.: Cross Polarization Characteristics of Rectangular Patch Antennas. IEEE/AP-S International Symposium Digest, 1988.

Lee, R.Q.; Lee, K.F.; and Bobinchak, J.: Two-Layer Electro-Magnetically Coupled Rectangular Patch Antenna, IEEE/AP-S International Symposium Digest 1988. (Also in Microstrip Antennas, IEEE Press, 1995.)

Lee, R.Q.; and Simons, R.N.: Electromagnetically Coupled Feed Network for an Array Module of Four Microstrip Elements. IEEE/AP-S International Symposium Digest, 1988.

Lo, Y.T.; Oberhart, M.L.; Brenneman, J.S.; Aoyagi, P.; Moore, J.; and Lee, R.Q.: Slotline Fed Microstrip Antenna Array Module. Microwave and Optical Technology Letters, vol. 1, no. 1, 1988.

Huynh, T.; Lee, K.F.; and Lee, R.Q.: Cross Polarization Characteristics of Rectangular Patch Antennas. Electr. Lett., vol. 24, no. 8, 1988.

Lee, R.Q.; and Baddour, M.F.: Absolute Gain Measurement of Microstrip Antennas Under Mismatched Conditions. Electr. Lett., vol. 24, no. 9, 1988.

Lee, R.Q.; and Lee, K.F.: Gain Enhancement of Microstrip Antennas With Overlaying Parasitic Directors. Electr. Lett., vol. 24, no. 11, 1988.

Zaman, A.; Lee, R.Q.; and Acosta, R.: Array Trade-Off Study Using Multilayer Parasitic Subarrays. Proceedings of the 1988 Antenna Applications Symposium, Monticello, IL, 1988.

Lee, R.Q.; Acosta, R.; and Lee, K.F.: Radiation Characteristics of Microstrip Arrays With Parasitic Elements. Electr. Lett., vol. 23, no. 16, 1987.

Lee, R.Q.; and Lee, K.F.: Characteristics of Electromagnetically Coupled Rectangular Patch Antennas With Overlaying Parasitic Elements. Proceedings of the 1988 Antenna Applications Symposium, Monticello, IL, 1988.

Lee, R.Q.; Huynh, T.; and Lee, K.F.: Experimental Study of the Cross Polarization Characteristics of Rectangular Patch Antennas. Microwave and Optical Technology Letters, 1989.

Lee, R.Q.; Zaman, A.; and Lee, K.F.: Effects of Dielectric Superstrates on a Two-Layer Electromagnetically Coupled Patch Antenna. IEEE/AP-S International Symposium Digest,1989.

Lee, R.Q.; and Lee, K.F.: Effects of Parasitic Patch Sizes on Multilayer Electromagnetically Coupled Patch Antenna. IEEE/AP-S International Symposium Digest, 1989.

Lee, R.Q.; Huynh, T.; and Lee, K.F.: Experimental Study of the Cross Polarization Characteristics of Rectangular Patch Antennas. IEEE/AP-S International Symposium Digest,1989.

Lee, R.Q.; and Lee, K.F.: Parasitic Size and Superstrate Effects on Electromagnetic Coupled Antennas. Electromagnetics Journal, 1989.

Lee, R.Q.; and Baddour, M.F.: Gain Measurement of Microstrip Antenna Under Mismatched Conditions. Antenna Measurement Technique Symposium Digest, 1989.

Lee, K.F.; Lee, R.Q.; and Talty, T.: Parasitic Subarray Combining Coplanar and Multilayer Geometries. IEEE/AP-S International Symposium Digest, 1990.

Lee, R.Q.; Lee, K.F.; and Zaman, A.: An Experimental Investigation of a 16x16 Microstrip Array With Stacked Parasitic Elements. IEEE/AP-S International Symposium Digest, 1990.

Simons, R.N.; Ponchak, G.E.; Lee, R.Q.; and Fernandez, N.S.: Coplanar Waveguide Fed Phased Array Antenna. IEEE/AP-S International Symposium Digest, 1990.

Lee, R.Q.; and Lee, K.F.: Experimental Study of the Two-Layer Electromagnetically Coupled Rectangular Patch Antenna. IEEE Trans. Antennas Propagation, vol. 38, no. 8, 1990.

Lee, K.F.; Lee, R.Q.; and Talty, T.: Microstrip Subarray With Coplanar and Stacked Parasitic Elements. Electr. Lett., vol. 26, no. 10, 1990.

Lee, R.Q.; and Lee, K.F.: A 16x16 Microstrip Array of Electromagnetically Coupled Patches Operating in High Gain Region. Microwave and Optical Technology Letters, 1990.

Simons, R.N.; and Lee, R.Q.: Coplanar-Waveguide/Microstrip Probe Coupler and Applications to Antennas. Electr. Lett., vol. 26, no. 24, 1990.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Circular Polarization Characteristics of Stacked Microstrip Antennas. Electr. Lett., vol. 26, no. 25, 1990.

Lee, R.Q.; Lee, K.F.; Talty, T.; and Fan, Z.: Recent Studies of Microstrip Antennas With Parasitic Elements. Progress in Electromagnetics Research Symposium Digest, 1991.

Zaman, A.J.; Rho, E.; Lee, R.Q.; and Zimmerman, M.L.: Grating Lobe Characteristics of a Hexagonal Array of Subarrays. IEEE/AP-S International Symposium Digest, 1991.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Circular Polarization Characteristics of Parasitic Microstrip Antennas. IEEE/AP-S International Symposium Digest, 1991.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Measured Mutual Coupling Between Two-Layer Electromagnetically Coupled Patch Antennas. IEEE/AP-S International Symposium Digest, 1991.

Simons, R.N.; Lee, R.Q.; and Lindamood, G.R.: A Seven Patch Hexagonal CP Subarray With CPW/Stripline Feed Network. IEEE/AP-S International Symposium Digest, 1991.

Navarro, J.A.; Chang, K.; Tolleson, J.; Sanzgiri, S.; and Lee, R.Q.: Performance of a 10 GHz Circular Patch Antenna Fed by an Aperture-Coupled Microstrip Line. IEEE/AP-S International Symposium Digest, 1991.

Navarro, J.A.; Chang, K.; Tolleson, J.; Sanzgiri, S.; and Lee, R.Q.: A 29.3 GHz Cavity-Enclosed Apertured-Coupled Circular Patch Antenna for Microwave Circuit Integration. Microwave and Guided Wave Letters, vol. 1, 1991.

Simons, R.N.; Lee, R.Q.; and Lindamood, G.R.: New Coplanar-Waveguide/Stripline Feed Network for Seven Patch Hexagonal CP Subarray. Electr. Lett., vol. 27, no. 6, 1991.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Mutual Coupling Between Electromagnetically Coupled Rectangular Patch Antennas. Electr. Lett., vol. 27, no. 6, 1991.

Lee, R.Q.; Raquet, C.A.; Tolleson, J.B.; and Sanzgiri, S.M.: Ka-Band MMIC Microstrip Array for High Rate Communitions. AIAA/NASA/OAI Conference on Advanced SEI Technologies, Cleveland, OH, 1991.

Simons, R.N.; Lee, R.Q.; and Lindamood, G.R.: Electromagnetic Coupling Between Coplanar Waveguide and Microstrip Antennas. Microwave and Optical Technology Letters, vol. 5, no. 2, 1992.

Simons, R.N.; and Lee, R.Q.: Coplanar Waveguide Aperture Coupled Patch Antennas With Ground Plane/Substrate of Finite Extent. Electr. Lett., vol. 28, no. 1, 1992.

Simons, R.N.; and Lee, R.Q.: Planar Dielectric Resonator Stablized HEMT Oscillator Integrated With CPW/Aperture Coupled Patch Antenna. IEEE MTT S International Microwave Symposium Digest, 1992.

Lee, R.Q.; and Simons, R.N.: Coplanar Waveguide Aperture-Coupled Microstrip Patch Antenna. Microwave and Guide Wave Letters, vol. 2, no. 4, 1992.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Circular Polarization Characteristics of Stacked Microstrip Antennas. Electr. Lett., vol. 26, no. 25, 1990.

Lee, R.Q.; Lee, K.F.; Talty, T.; and Fan, Z.: Recent Studies of Microstrip Antennas With Parasitic Elements. Progress in Electromagnetics Research Symposium Digest, 1991.

Zaman, A.J.; Rho, E.; Lee, R.Q.; and Zimmerman, M.L.: Grating Lobe Characteristics of a Hexagonal Array of Subarrays. IEEE/AP-S International Symposium Digest, 1991.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Circular Polarization Characteristics of Parasitic Microstrip Antennas. IEEE/AP-S International Symposium Digest, 1991.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Measured Mutual Coupling Between Two-Layer Electromagnetically Coupled Patch Antennas. IEEE/AP-S International Symposium Digest, 1991.

Simons, R.N.; Lee, R.Q.; and Lindamood, G.R.: A Seven Patch Hexagonal CP Subarray With CPW/Stripline Feed Network. IEEE/AP-S International Symposium Digest, 1991.

Navarro, J.A.; Chang, K.; Tolleson, J.; Sanzgiri, S.; and Lee, R.Q.: Performance of a 10 GHz Circular Patch Antenna Fed by an Aperture-Coupled Microstrip Line. IEEE/AP-S International Symposium Digest, 1991.

Navarro, J.A.; Chang, K.; Tolleson, J.; Sanzgiri, S.; and Lee, R.Q.: A 29.3 GHz Cavity-Enclosed Apertured-Coupled Circular Patch Antenna for Microwave Circuit Integration. Microwave and Guided Wave Letters, vol. 1, 1991.

Simons, R.N.; Lee, R.Q.; and Lindamood, G.R.: New Coplanar-Waveguide/Stripline Feed Network for Seven Patch Hexagonal CP Subarray. Electr. Lett., vol. 27, no. 6, 1991.

Lee, R.Q.; Talty, T.; and Lee, K.F.: Mutual Coupling Between Electromagnetically Coupled Rectangular Patch Antennas. Electr. Lett., vol. 27, no. 6, 1991.

Lee, R.Q.; Raquet, C.A.; Tolleson, J.B.; and Sanzgiri, S.M.: Ka-Band MMIC Microstrip Array for High Rate Communitions. AIAA/NASA/OAI Conference on Advanced SEI Technologies, Cleveland, OH, 1991.

Simons, R.N.; Lee, R.Q.; and Lindamood, G.R.: Electromagnetic Coupling Between Coplanar Waveguide and Microstrip Antennas. Microwave and Optical Technology Letters, vol. 5, no. 2, 1992.

Simons, R.N.; and Lee, R.Q.: Coplanar Waveguide Aperture Coupled Patch Antennas With Ground Plane/Substrate of Finite Extent. Electr. Lett., vol. 28, no. 1, 1992.

Simons, R.N.; and Lee, R.Q.: Planar Dielectric Resonator Stablized HEMT Oscillator Integrated With CPW/Aperture Coupled Patch Antenna. IEEE MTT S International Microwave Symposium Digest, 1992.

Lee, R.Q.; and Simons, R.N.: Coplanar Waveguide Aperture-Coupled Microstrip Patch Antenna. Microwave and Guide Wave Letters, vol. 2, no. 4, 1992.

Richard, M.A.; Bhasin, K.B.; Lee, R.Q.; and Claspy, P.C.: Performance of a Ka-Band Superconducting Annular Ring Antenna. Microwave and Optical Technology Letters, vol. 5, no. 6, 1992.

Chebolu, S.R.; Lee, K.F.; and Lee, R.Q .: Comparison of Rectangular and Triangular Microstrip Arrays. IEEE AP S International Symposium Digest, 1992.

Lee, R.Q.; and Simons, R.N.: Slot-Coupled Patch Antenna With Coplanar Waveguide Feed. IEEE AP S International Symposium Digest, 1992.

Huynh, T.; Lee, K.F.; Chebolu, S.A.; and Lee, R.Q.: Mutual Coupling Between Rectangular Microstrip Patch Antennas. IEEE AP S International Symposium Digest, 1992.

Chen, W.; Lee, K.F.; and Lee, R.Q.: Moment Method Analysis of Coplanar Parasitic Subarrays. IEEE AP S International Symposium Digest, 1992.

Simons, R.N.; Lee, R.Q.; and Perl, T.D.: Non-Planar Linearly Tapered Slot Antenna With Balanced Microstrip Feed. IEEE AP S International Symposium Digest, 1992.

Sanzgiri, S.; Tolleson, J.; Lee, R.Q.; and Raquet, C.: Ka-Band Active MMIC Subarray Development. 14th International Communication Satellite Systems Conference Proceedings, 1992.

Lee, R.Q.; Simons, R.N.; and Sil, A.K.: Ka-Band Dual Frequency Array Feed for a Low Cost ACTS Ground Terminal. 14th International Communication Satellite Systems Conference Proceedings, 1992.

Kunath, R.; Lee, R.; Martzaklis, K.; Shalkhauser, K.; Downey, A.; and Simons, R.: A Vertically Integrated Ka-Band Phased Array Antenna. 14th International Communication Satellite Systems Conference Proceedings, 1992.

Simons, R.N.; Perl, T.D.; and Lee, R.Q.: New Coplanar Waveguide Feed Network for 2x2 Linearly Tapered Slot Antenna Subarray. Microwave and Optical Technology Letters, vol. 5, no. 8, 1992.

Huynh, T.; Lee, K.F.; Chebolu, S.R.; and Lee, R.Q.: Mutual Coupling Between Rectangular Microstrip Patch Antennas. Microwave and Optical Technology Letters, vol. 5, no. 11, 1992.

Raquet, C.; Zakrajsek, R.; Lee, R.; and Turtle, J.: Ka-Band MMIC Array for ACTS Aero Terminal Experiment. 1992 World Space Congress Proceedings, 1992.

Lee, R.Q.; Raquet, C.A.; Tolleson, J.B.; and Sanzgiri, S.: Ka-Band MMIC Phased Array for Satellite Communication. Monolithic Microwave Integrated Circuit Space and Ground Applications Symposium, Pasadena, CA, 1992.

Kunath, R.R.; Lee, R.Q.; Martzaklis, K.S.; Shalkhauser, K.A.; Downey, A.N.; and Simons, R.: An Optically Controlled Ka-Band Phased Array Antenna. Monolithic Microwave Integrated Circuit Space and Ground Applications Symposium, Pasadena, CA, 1992.

Chen, W.; Lee, K.F.; and Lee, R.Q.: Spectral-Domain Moment-Method of Coplanar Microstrip Parasitic Subarrays. Microwave and Optical Technology Letters, vol. 6, no. 3, 1993.

Chen, W.; Lee, K.F.; Dahele, J.S.; and Lee, R.Q.: CAD Formula for the Resonant Frequency of the Rectangular Microstrip Antenna With a Dielectric Cover. Eighth International Conference on Antennas and Propagation Symposium Proceeding, 1993.

Simons, R.N.; Lee, R.Q.; Perl, T.D.; and Silvestro, J.: Effect of a Dielectric Overlay on a Linearly Tapered Slot Antenna Excited by a Coplanar Waveguide. Microwave and Optical Technology Letters, vol. 6, no. 4, 1993.

Simons, R.N.; and Lee, R.Q.: Space Power Amplification With Active Linearly Tapered Slot Antenna Array. IEEE MTT S International Microwave Symposium Digest, 1993.

Simons, R.N.; Taub, S.R.; and Lee, R.Q.: Characteristics of Linearly Tapered Slot Antenna With CPW Feed on High Resistivity Silicon. IEEE AP S International Symposium Digest, 1993.

Simons, R.N.; and Lee, R.Q.: Linearly Tapered Slot Antenna With Dielectric Superstrate. IEEE AP S International Symposium Digest, 1993.

Lee, R.Q.; and Simons, R.N.: Bandwidth Enhancement of Dielectric Resonator Antennas. IEEE AP S International Symposium Digest, 1993.

Zimmerman, M.L.; and Lee, R.Q.: Mutual Coupling Effects for Small Microstrip Array Antennas. IEEE AP S International Symposium, 1993.

Lee, R.Q.; and Simons, R.N.: Recent Activities in Printed Antennas at LeRC. Progress in Electromagnetic Research Symposium Digest, 1993.

Chen, W.; Lee, K.F.; and Lee, R.Q.: Effect of Substrate Thickness on Input Impedance of Coaxially-Fed Rectangular Patch Antennas. IEEE AP S International Symposium Digest, 1993.

Simons, R.N.; Taub, S.R.; Lee, R.Q.; and Young, P.G.: Microwave Characterization of Slotline on High Resistivity Silicon for Antenna Feed Network. 1993 URSI Radio Science Symposium Digest, 1993.

Chen, W.; Lee, K.F.; Dahele, J.S.; and Lee, R.Q.: Microstrip Antennas With Multi-Dielectric Layers. 1993 URSI Radio Science Symposium Digest, 1993.

Chen, W.; Lee, K.F.; and Lee, R.Q.: Input Impedance of Coaxially-Fed Rectangular Microstrip Antenna on Electrically Thick Substrate. Microwave and Optical Technology Letters, vol. 6, no. 6, 1993.

Chen, W.; Lee, K.F.; Dahele, J.S.; and Lee, R.Q.: CAD Formulas for Resonant Frequencies of TM01 and TM10 Modes of Rectangular Patch Antenna With Superstrate. International Journal of Microwave and Millimeter-Wave Computer Aided Engineering, vol. 3, no. 4, 1993.

Zimmerman, M.; and Lee, R.Q.: Directivity Versus Element Spacing for a Scanning Array. Microwave and Optical Technology Letters, vol. 6, no. 6, 1993.

Zimmerman, M.L.; and Lee, R.Q.: Development of a Dual Frequency Array for ACTS Small Terminal. Proceedings of the 1993 Antenna Applications Symposium, 1993.

Lee, R.Q.; and Simons, R.N.: Linearly Tapered Slot Antennas and Feed Networks. Proceedings of the 1993 Antenna Applications Symposium, 1993.

Simons, R.N.; and Lee, R.Q.: Effect of Parasitic Dielectric Resonators on CPW/Aperture-Coupled Dielectric Resonator Antennas. IEEE Proceedings-H, Microwave Ant. & Prop., vol. 140, no. 5, 1993.

Lee, K.F.; Chebolu, S.A.; Chen, W.C.; and Lee, R.Q.: On the Role of Substrate Loss Tangent in the Cavity Model Theory of Microstrip Patch Antenna. IEEE Trans. Antennas Propagation, vol. 42, no. 1, 1994.

Chen, W.C.; Lee, K.F.; and Lee, R.Q.: Spectral Domain Full-Wave Analysis of the Input Impedance of Coaxially-Fed Rectangular Microstrip Antenna. Journal of Electromagnetic Wave and Applications, vol. 8, no. 2, 1994.

Simons, R.N.; Kelly, E.; Lee, R.Q.; and Taub, S.R.: Linearly Tapered Slot Antenna Circular Array for Mobile Communications. Proceedings of the 1994 SPIE International Conference on Millimeter and Submillimeter Waves and Applications, vol. 2250, 1994.

Zimmerman, M.L.; and Lee, R.Q.: Use of the FDTD Method in the Design of Microstrip Antenna Arrays. International Journal of Microwave and Millimeter-Wave Computer Aided Engineering, vol. 4, no. 1, 1994.

Sanzgiri, S.; Pottenger, W.; Bostrom, D.; Denniston, D.; and Lee, R.Q.: Active Subarray Module Development for Ka-Band Satellite Communication Systems. IEEE AP S International Symposium Digest, 1994. (Also in Microstrip Antennas, IEEE Press.)

Cheng, J.C.; Dib, N.I.; Katehi, L.P.B.; Simons, R.N.; and Lee, R.Q.: Analysis of a Slot Coupled Coplanar Waveguide Fed Patch Antenna. IEEE AP S International Symposium Digest, 1994.

Simons, R.N.; and Lee, R.Q.: Spatial Frequency Multiplier With Active Linearly Tapered Slot Antenna Array. IEEE MTT S International Microwave Symposium Digest, 1994.

Lee, R.Q.; and Zimmerman, M.: Enhancement of Array Gain With Stacked Parasitic Elements. IEEE AP S International Symposium Digest, 1994.

Simons, R.N.; Kelly, E.S.; Lee, R.Q.; and Taub, S.R.: Radial Microstrip Slotline Feed Network for Circular Mobile Communications Array. IEEE AP S International Symposium Digest, 1994.

Chen, W.; Lee, K.F.; and Lee, R.Q.: Studies of Stacked Electromagnetically Coupled Patch Antennas. 1994 URSI Radio Science Symposium Digest, 1994.

Simons, R.N.; Taub, S.R.; Lee, R.Q.; and Young, P.G.: Microwave Characterization of Slotline and Coplanar Stripline on High Resistivity Silicon for a Slot Antenna Feed Network. Microwave and Optical Technology Letters, vol. 7, no. 11, 1994.

Zimmerman, M.L.; and Lee, R.Q.: Dual-Frequency Array for ACTS Ground Terminal. IEEE AP S International Symoposium Digest, 1994.

Lee, K.F.; Chen, W.; and Lee, R.Q.: Studies of Stacked Electromagnetically Coupled Patch Antennas. Microwave and Optical Technology Letters, vol. 8, no. 4, 1995.

Simons, R.N.; and Lee, R.Q.: Linearly Tapered Slot Antenna Impedance Characteristics. 1995 AP S International Symposium Digest, 1995.

Lee, R.Q.; and Lee, K.F.: Characteristics of a Stacked Microstrip Antenna With an Embedded Parasitic Element. 1995 IEEE AP S International Symposium Digest,1995.

Simons, R.N.; Dib, N.I.; Lee, R.Q.; and Katehi, L.P.: Integrated Uniplanar Transition for Linearly Tapered Slot Antenna. IEEE Trans AP S, vol. 43, no. 9, 1995.

Sanzgiri, S.; Bostrom, D.; Pottenger, W.; and Lee, R.Q.: A Hybrid Tile Approach for Ka-Band Subarray Module. IEEE Trans AP S, vol. 43, no. 9, 1995.

Lee, K.F.; Chen, W.; Lee, R.Q.; Luk, K.M.; and Tong, K.F.: Microstrip Antennas With Multidielectric Layers. Microwave and Optical Technology Letters, vol. 9, no. 3, 1995.

Lee, K.F.; Chen, W.; and Lee, R.Q.: Effect of Superstrate Thickness and Permittivity on Stacked Electromagnetic Coupled Patch Antennas. 1995 URSI Digest.

Lee, R.Q.; Zaman, A.; and Lee, K.F.: Mutual Coupling in Coplanar Arrays. 1996 URSI Digest.

Lee, R.Q.; and Simons, R.N.: Effect of Curvature on Tapered Slot Antennas. 1996 IEEE AP S International Symposium, 1996.

Walcher, D.; Lee, R.Q.; and Lee, K.F.: Microstrip Patch Antenna Receiving Array Operating in the Ku-Band. 1996 IEEE AP S International Symposium Digest, 1996.

Lee, K.F.; Kollarits, F.; Chen, W.; and Lee, R.Q.: Effects of Substrate Thickness and Permittivity on Coplanar Microstrip Parasitic Arrays. 1996 URSI Digest.

Simons, R.N.; Lee, R.Q.; Shalkhauser, K.A.; Owens, J.; Demarco, J.; Leen, J.; and Sturzebecher, D.: Finite Width Coplanar Waveguide Patch Antenna With Vertical Fed Through Interconnect. 1996 IEEE AP S International Symposium Digest, 1996.

Walcher, D.A.; Lee, R.Q.; and Lee, K.F.: Ku-Band Microstrip Patch Antenna Receiving Arrays. Microwave and Optical Technology Letters, vol. 13, no. 4, 1996.

Lee, K.F.; Luk, K.M.; Tong, K.F.; Shum, M.; Huynh, T.; and Lee, R.Q.: Experimental and Simulation Studies of the Coaxially-Fed U-Slot Rectangular Patch Antenna. IEEE Proc. Microwave Ant. & Prop. vol. 144, no. 5, 1997.

Simons, R.N.; and Lee, R.Q.: Characterization of Miniature Millimeter-Wave Vivaldi Antenna for Local Multipoint Distribution Service. 49th ARFTG/MTT Conf. Digest, 1997.

Simons, R.N.; and Lee, R.Q.: Feasibility Study of Optically Transparent Microstrip Patch Antenna. 1997 IEEE AP S International Symposium Digest, 1997.

Lee, R.Q.; and Simons, R.N.: Magnetic Field Distribution at Close Proximity of a Tapered Slot Antenna. 1997 IEEE AP S International Symposium Digest, 1997.

Lee, R.Q.; and Simons, R.N.: Measured Mutual Coupling Between Linearly Tapered Slot Antennas. IEEE Tran. Ant. & Prop., vol. 45, no. 8, 1997.

Zaman, A.F.; and Lee, R.Q.: A Spherical to Plane Wave Transformation Using a Reflectarray. 1997 IEEE AP S International Symposium Digest, 1997.

Luk, K.M.; Tong, K.F.; Shum, S.M.; Lee, K.F.; and Lee, R.Q.: FDTD Analysis of U-Slot Rectangular Patch Antenna. 1997 IEEE AP S International Symposium Digest.

Roberto, A.; Reinhard, R.; Lee, R.Q.; and Simons, R.N.: Ultra Small Aperture Terminal for Ka-Band SATCOM. Wireless & Microwave Technology Conference & Exposition, Chatilly, VA, 1997.

Lee, K.F.; Luk, K.M.; Huynh, T.; Tong, K.F.; and Lee, R.Q.: U-Slot Patch Wideband Microstrip Antenna, Directions for the Next Generation of MMIC Devices and Systems. Plenum Press, New York, NY, 1997.

Lee, K.F.; Chen, W.; and Lee, R.Q.: Probe-Fed Microstrip Antennas, Advance in Microstrip and Printed Antennas. John Wiley & Sons, Inc., 1997.

Lee, R.Q.; and Simons, R.N.: Tapered Slot Antenna, Advance in Microstrip and Printed Antennas. John Wiley & Sons, Inc., 1997.

Lee, R.Q.; and Simons, R.N.: Orthogonal Feeding Techniques for Tapered Slot Antennas. 1998 IEEE AP S International Symposium Digest, 1998.

Simons, R.N.; and Lee, R.Q.: Linearly Tapered Lot Antenna Radiation Characteristics at Millimeter-Wave Frequencies. 1998 IEEE AP S International Symposium Digest, 1998.

Afroz, A.; and Lee, R.Q.: Design Considerations for Notch Feeding of a Patch Antenna. 1998 USNC/URSI National Radio Science Meeting Digest, 1998.

Simons, R.N.; and Lee, R.Q.: Impedance Matching of Tapered Slot Antenna Using a Dielectric Transformer. Electr. Lett., vol. 34, no. 24, 1998.

Simons, R.N.; and Lee, R.Q.: On-Wafer Characterization of Millimeter-Wave Antennas for Wireless Applications. IEEE Trans. on Microwave Theory and Techniques, vol. 47, no. 1, 1999.

Lee, R.Q.; and Simons, R.N.: Design of Broadband Vertical Transitions for Tapered Slot Antennas. 1999 USNC/URSI Radio Science Meeting Digest, 1999.

Zaman, A.; Simons, R.N.; and Lee, R.Q.: Proximity-Coupled Dual Polarized Patch Antenna. 1999 USNC/URSI Radio Science Meeting Digest, 1999.

Zaman, A.J.; Lee, R.Q.; and Simons, R.N.: A New Design Approach for Patch Antenna With Notch Feed. Microwave and Optical Technology Letters, 1999.

Lee, R.Q.: Planar Microstrip Yagi Array With Notched Parasitic Elements. 2000 USNC/URSI Radio Science Meeting Digest, 2000.

Zaman, A.; and Lee, R.Q.: Stacked Electromagnetically Coupled Rectangular Patch Antenna With Segmented Elements. 2000 USNC/URSI Radio Science Meeting Digest, 2000.

Lee, R.Q.; and Zaman, A.: A Wideband U-Slot Antenna With Photonic Bandgap Structure. 2001 USNC/URSI Radio Science Meeting Digest, 2001.

Zaman, A.; and Lee, R.Q.: A 3-Beam MEMS-Actuated Leaky Wave Antenna. 2001 USNC/URSI Radio Science Meeting Digest, 2001.

Lee, R.Q.; and Zaman, A.J.: Planar Microstrip Yagi Array With Notched Parasitic Elements. Submitted to IEEE Trans Antenna and Propagation.

Lee, R.Q.; Romisch, S.; and Popovic, Z.: Multi-Beam Phased Array Antennas. Proceedings of the 2002 Antenna Applications Symposium, 2002.

William, W.D.; Ponchak, G.E.; Simons, R.N.; Zaman, A.F.; Cory, C.; Wintucky, E.D.; Wilson, J.D.; Scardelletti, M.; Lee, R.Q.; and Hung, H.D.: RF MEMS and Their Application in NASA’s Space Communication Systems. Space Communications 18 IOS Press, 2002.

Zaman, A.; Ramadoss, R.; Lee, S.; Lee, R.Q.; Lee, Y.C.; and Gupta, K.C.: A Novel MEMS Reconfigurable Leaky Wave Antenna. 2003 IEEE AP S International Symposium, Columbus, OH, 2003.

Romisch, S.; Popovic, D.; Shino, N.; Lee, R.; and Popovic, Z.: Multi-Beam Discrete Lens Arrays With Amplitude-Controlled Steering. 2003 IEEE MTT S Digest, 2003.

Clark, E.; Lee, R.Q.; Pal, A.M.; Wilt, D.; and Mueller, C.: Integrated Phase Array Antenna/Solar Cell System for Flexible Access Communications (IA/SAC). 18th Space Photovoltaic Research and Technology (SPRAT XVIII) Conference Digest, Cleveland OH, 2003.

Lee, R.Q.: Notch Antennas. To be published in the Encyclopedia of RF and Microwave Engineering, John Wiley & Sons, Inc.

Lee, R.Q.; Clark, E.B.; Pal, A.M.; Wilt, D.M.; and Mueller, C.H.: Integrated Antenna/Solar Array Cell (IA/SAC) System for Flexible Access Communications. Submitted to the 2004 USNC/URSI Radio Science Meeting.


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