J. Choi and A.
Mortazawi, “A
New
L. Schulwitz, S. Ortiz and A Mortazawi, “Packaging Method for Increased Isolation Using a Microstrip to Waveguide Transition,” IEEE Microwave and Wireless Components Letters, Volume 17, March 2007 Pages:163 – 165
J.-S. Fu, X. A. Zhu, J. D. Phillips and A. Mortazawi, “Improving Linearity of Ferroelectric-Based Microwave Tunable Circuits,” IEEE Transactions on Microwave Theory and Techniques, Volume 55, Part 2, Feb. 2007 Pages: 354 – 360
L. Schulwitz and A. Mortazawi, “Millimeter-Wave Dual Polarized L-Shaped Horn Antenna for Wide-Angle Phased Arrays,” IEEE Transactions on Antennas and Propagation, Volume 54, Sept. 2006 Pages: 2663 - 2668
J. Choi and A. Mortazawi, “Design of Push-Push and Triple-Push Oscillators for Reducing 1/f Noise Upconversion,” IEEE Transactions on Microwave Theory and Technique, Volume 53, Issue 11, Nov. 2005 Pages: 3407 - 3414X. Zhu, J. Phillips and A. Mortazawi, “A DC Voltage Dependant Switchable Thin Film Bulk Wave Acoustic Resonator Using Ferroelectric Thin Film,” IEEE/MTT-S International Microwave Symposium, 2007.
J. Choi, M.-H. Chen, and A. Mortazawi, " An X-band Low Phase Noise Oscillator Employing a Four-pole Elliptic-Response Microstrip Bandpass Filter,” IEEE/MTT-S International Microwave Symposium, 2007, Page(s):1529 – 1532
L. Schulwitz and A. Mortazawi, “A Monopulse Rotman Lens Phased Array for Enhanced Angular Resolution,” IEEE/MTT-S International Microwave Symposium, 2007, Pages: 1871 - 1874
L. Schulwitz and A.
Mortazawi, “Millimeter-wave
dual polarized L-shaped horn antenna array, IEEE Antennas
and Propagation Society International Symposium 2006, Pages: 3153 - 3156
J. Choi and A. Mortazawi, “A novel low phase noise multiple-device oscillator
based on the extended resonance technique,” IEEE MTT-S International
Microwave Symposium, 2006 Pages: 577 - 580
J. Fu, X. Zhu, D.Y. Chen, J. Philips and A. Mortazawi, “A Linearity Improvement
Technique for Thin-film Barium Strontium Titanate Capacitors,” IEEE MTT-S
International Microwave Symposium, 2006 Pages: 560 - 563
L. Schulwitz and A. Mortazawi, “A New Low Loss Rotman Lens Design for Multibeam
Phased Arrays,” IEEE MTT-S International Microwave Symposium, 2006,
Pages: 445 - 448
J. Choi and A. Mortazawi, “A novel low phase noise multiple-device oscillator based on the extended resonance technique,” IEEE MTT-S International Microwave Symposium, 2006 Pages: 577 - 580
J. Fu, X. Zhu, D.Y. Chen, J. Philips and A. Mortazawi, “A Linearity Improvement Technique for Thin-film Barium Strontium Titanate Capacitors,” IEEE MTT-S International Microwave Symposium, 2006 Pages: 560 - 563
L. Schulwitz and A. Mortazawi, “A New Low Loss Rotman Lens Design for Multibeam Phased Arrays,” IEEE MTT-S International Microwave Symposium, 2006, Page(s):445 - 448
A. Tombak and A. Mortazawi, “An X-band low-cost compact phased array based on the extended resonance power dividing technique", IEEE APS International Conference on Antennas and Propagation, Washington, DC, Volume 1A, 3-8 July 2005 Pages: 334 - 337 Vol. 1A
Xinen Zhu, Ding-Yuan Chen, Zhang Jin, Jamie D. Phillips and Amir Mortazawi, "Characterization of Thin Film BST Tunable Capacitors Using A Simple Two Port Measurement Technique," IEEE MTT-S International Microwave Symposium, June 2005 Pages: 611 - 614
L. Schulwitz and A. Mortazawi, "A Broadband Millimeter-Wave Dual Polarized Phased Array for Radar Front End Applications," IEEE MTT-S International Microwave Symposium, June 2005.
J. Choi and A. Mortazawi, “Design of Push-Push Oscillators for Reducing 1/f Noise Upconversion,” IEEE MTT-S International Microwave Symposium, June 2005 Page(s):1531 - 1534
X. Jiang and A. Mortazawi, "A Broadband Power Amplifier Design Based on the Extended Resonance Power Combining Technique," IEEE MTT-S International Microwave Symposium, 2005
N. Gupta, A. Tombak, A. Mortazawi, “A Varactor Diode Based Predistortion Circuit”, 2004 IEEE MTT-S International Microwave Symposium, vol. 2, pp. 689-692, Jun 2004.
Al-Zayed, L. Schulwitz, and A. Mortazawi, "A Dual Polarized Millimeter-Wave Multibeam Phased Array," IEEE MTT-S Int. Microwave Symp., Dig., vol. 1, June 2004, pp. 87-90.
Tombak, A.; Mortazawi, A., “Design of novel low-cost phased arrays based on the extended resonance technique,” IEEE Antennas and Propagation Society International Symposium, 2003, Volume: 4, 2003, Pages: 672 - 675
Zhang Jin; Mortazawi, A., “An L-band Tunable Microstrip Antenna Using Multiple Varactors,” IEEE Antennas and Propagation Society International Symposium, Volume: 4, 2003
Al-Zayed, A.; Ortiz, S.; Ozkar, M.; Mortazawi, A, “Numerical and experimental investigation of losses in a tray based spatial power amplifier, “IEEE MTT-S International Microwave Symposium Digest, 2003, Volume: 3, 8-13 June 2003
Pages: 1867 - 1870
Tombak, A.; Mortazawi, A.; “A Novel Phased Array Based on the Extended Resonance
Power Dividing Technique” IEEE MTT-S International Microwave Symposium Digest, Volume: 3 ,8-13 June 2003, Pages: 1849 - 1852
Ozkar, M.; Mortazawi, A., “Electromagnetic modeling of a waveguide-based spatial power amplifier array with hard horn feeds,” Antennas and Propagation Society International Symposium, 2002. IEEE ,Volume: 3 , 16-21 June 2002 Pages: 400
Batty, W.; Christoffersen, C.E.; Yakovlev, A.B.; Whitaker, J.F.; Ozkar, M.; Ortiz, S.; Mortazawi, A.; Reano, R.; Yang, K.; Katehi, L.P.B.; Snowden, C.M.; Steer, M.B.; “Global coupled EM-electrical-thermal simulation and experimental validation for a spatial power combining MMIC array,” IEEE MTT-S International Microwave Symposium Digest,Volume: 3 , 2-7 June 2002, Pages: 2177 - 2180
Ortiz, S.; Al-Zayed, A.; Mortazawi, A.; “A Ka-band perpendicularly-fed patch array for spatial power combining,” IEEE MTT-S International Microwave Symposium Digest, Volume: 3, 2-7 June 2002, Pages: 1519 - 1522
Al-Zayed, A.; Ortiz, S.; Mortazawi, A.; “Bandwidth improvement in a tile based spatial power amplifier” IEEE MTT-S International Microwave Symposium Digest, Volume: 2 ,2-7 June 2002, Pages: 1313 - 1316
M. Ozkar; A. Mortazawi, “Optimization of the array parameters in waveguide-based spatial power combiners with hard horn feeds,” IEEE MTT-S International Microwave Symposium Digest, Volume: 2, 2-7 June 2002, Pages: 1301 - 1304
Zhang Jin; Tombak, A.; Maria, J.-P.; Boyette, B.; Stauf, G.T.; Kingon, A.I.; Mortazawi, A, “Microwave characterization of thin film BST material using a simple measurement technique,.; IEEE MTT-S International Microwave Symposium Digest, 2002 ,Volume: 2 ,2-7 June 2002, Pages:1201 - 1204
Gregory T. Stauf, Craig Ragaglia, Jeffrey F. Roeder, Jon-Paul Maria, Jin Zhang, Angus Kingon, Amir Mortazawi, Ali Tombak, Tito Ayguavives, Michael Brand, ”HIGH FREQUENCY APPLICATIONS OF LOW LOSS, TUNABLE BARIUM STRONTIUM TITANATE THIN FILMS,” Proceedings MRS Meeting, Spring 2002
Yakovlev, A.B.; Ortiz, S.; Ozkar, M.; Mortazawi, A.; Steer, M.B.; “Electric Green's dyadics for modeling resonance and surface wave effects in a waveguide-based aperture-coupled patch array”, IEEE Antennas and Propagation Society International Symposium, 2001. ,Volume: 3 , 8-13 July 2001 Pages:236 - 239
Zhang Jin; Ortiz, S.; Mortazawi, A.; “Design of a novel digital phase shifter at X-band,” IEEE MTT-S International Microwave Symposium Digest, Volume: 1 , 20-25 May 2001
Pages:233 - 236
Ortiz, S.; Ozkar, M.; Yakovlev, A.; Steer, M.; Mortazawi, A.; “Fault tolerance analysis and measurement of a spatial power amplifier,” IEEE MTT-S International Microwave Symposium Digest, Volume: 3 ,20-25 May 2001, Pages: 1827 - 1830
Tombak, A.; Ayguavives, F.T.; Maria, J.-P.; Stauf, G.T.; Kingon, A.I.; Mortazawi, A.; “Tunable RF filters using thin film barium strontium titanate based capacitors,” IEEE MTT-S International Microwave Symposium Digest, Volume: 3, 20-25 May 2001, Pages: 1453 - 1456
Ozkar, M.; Lazzi, G.; Mortazawi, A.; “Study of design parameters in waveguide-based spatial power combining amplifier arrays using FDTD,” IEEE MTT-S International Microwave Symposium Digest, Volume: 2, 20-25 May 2001, Pages: 1403 - 1406
Xin Jiang; Ortiz, S.; Mortazawi, A.; “A novel Ka-band 1 to 8 power divider/combiner, ”IEEE MTT-S International Microwave Symposium Digest, Volume: 1, 20-25 May 2001 Pages:35 - 38
Ayguavives, T.; Tombak, A.; Maria, J.-P.; Stauf, G.T.; Ragaglia, C.; Roeder, J.; Mortazawi, A.; Kingon, A.I.; “Physical properties of (Ba,Sr)TiO3 thin films used for integrated capacitors in microwave applications,” IEEE International Symposium on Applications of Ferroelectrics, 2000. ISAF 2000. Proceedings of the 2000 12th ,Volume: 1 ,21 July-2 Aug. 2000 Pages: 365 - 368 vol. 1
A. Ortiz, J. Hubert, E. Schlecht, L. Mirth and A. Mortazawi, “A 25 Watt and a 50 Watt Ka-Band Quasi-Optical Amplifier,” IEEE MTTS International Microwave Symposium Digest, pp. 797-800, June 2000, Boston, MA
A. Tombak, J.P. Maria, A. Kingon and A. Mortazawi, ”Low Voltage Tunable Barium Strontium Titanate Thin Film Capacitors for RF and Microwave Applications,” IEEE International Microwave Symposium Digest, pp. 1345-1348, June 2000, Boston, MA
A. Martin and A. Mortazawi, “A 33 GHz Power Amplifier Based and an Extended Resonance Technique,” IEEE International Microwave Symposium Digest, pp. 999-1002, June 2000, Boston, MA
A.B. Yakovlev, S. Ortiz, M. Ozkar, A. Mortazawi, and M.B. Steer, “Electromagnetic Modeling and Experimental Verification of a Complete Waveguide-Based Aperture-Coupled Patch Amplifier Array,” IEEE MTT-S International Microwave Symposium Digest, pp. 801-804, Boston, MA, June 2000.
A.B. Yakovlev, S. Ortiz, M. Ozkar, A. Mortazawi, and M.B. Steer, “Electromagnetic Modeling of an Aperture-Coupled Patch Array in the N-Port Layered Waveguide for Spatial Power Combining Applications,” to be presented at the IEEE AP-S International Symposium and USNC/URSI National Radio Science Meeting Digest, pp. 518-521, Salt Lake City, UT, July 2000.
J. F. Roeder, C. Ragaglie, G. T. Stauf, F. Ayguavives, J.-P. Maria, A. I. Kingon, A. Tombak and A. Mortazawi, ”Physical properties of (Ba,Sr)TiO3 thin films used for integrated capacitors in microwave applications,” ISAF 2000 (Aachen, Germany, March 12-15, 2000).
M. Ozkar and A. Mortazawi, “Hard Horn Feeds for Quasi-Optical Amplifiers,” Invited, General Assembly of International Union of Radio Science, URSI, Dec. 1999 Toronto, Canada
S. Ortiz and A. Mortazawi, ”A Perpendicular Aperture-Fed Patch Antenna for Quasi-Optical Amplifier Arrays,” IEEE AP-S Antennas and Propagation International Symposium Digest, pp. 2386-2389, July 1999
M. Ozkar and A. Mortazawi, “An Inhomogeneous Waveguide Transformer with Hard Walls for the Excitation of Quasi-optical Amplifiers,” IEEE AP-S Antennas and Propagation International Symposium Digest, pp. 958-961, July 1999
A. Khalil, M. Ozkar, A. Mortazawi and M. Steer, “Modeling of Waveguide Based Spatial Power Combining Systems,” IEEE AP-S Antennas and Propagation International Symposium Digest, pp. 2374-2377, July 1999
S. Ortiz and A. Mortazawi, “A perpendicularly fed patch array for quasi-optical power combining,” IEEE MTT-S International Microwave Symposium Digest, pp. 667-670, June 1999
J. Hubert, L. Mirth, S. Ortiz and A. Mortazawi, “A 4 Watt Ks-Band Quasi-Optical Amplifier,” IEEE MTTS International Microwave Symposium Digest, pp. 551-554, June 1999
R. Bashirullah and Amir Mortazawi, “A slotted Waveguide Quasi-Optical Power Amplifier,” IEEE MTT-S International Microwave Symposium Digest, 671-674, June 1999
Maha Ali, Sean Ortiz, Tony Ivanov and Amir Mortazawi, “Hard Horn Feeds for the Excitation of Quasi-Optical Amplifier,” IEEE Antennas and Propagation International Symposium Digest, pp. 490-493, Jun 1998
Sean Ortiz and Amir Mortazawi, “A Compact Circularly Polarized Transmit-Receive Antenna for LAN applications”, IEEE Antennas and propagation International Symposium Digest, pp. 2104-2107, Jun 1998
S. Ortiz, T. Ivanov and A. Mortazawi, "A CPW fed Microstrip Patch Quasi-Optical Amplifier Array," IEEE International Microwave Symposium Digest, pp. 1465-1468, Jun 1998
M. Ali, S. Ortiz, T. Ivanov and A. Mortazawi, "Analysis and Measaurement of Hard Horn Antennas for the Excitation of Quasi-Optical Amplifiers," IEEE MTT-S International Microwave Symposium Digest, pp. 1469-1472, Jun 1998
S. Ortiz, T. Ivanov and A. Mortazawi, “A Transmit-Receive Spatial Amplifier Array,” IEEE MTT-S International Microwave Symposium Digest, pp. 679-682, Jun 1997
A. Mortazawi "An Extended Resonance Power Combining Amplifier," IEEE/MTT 4th Int. Workshop on Integrated Nonlinear Microwave and Millimeter-wave Circuits, Duisburg, Germany, Oct. 1996
M. Rahman, T. Ivanov and A. Mortazawi, "An Extended Resonance Spatial Power Combining Oscillator," IEEE MTT-S International Microwave Symposium Digest, pp. 1263-1266, June 1996
T. Ivanov and A. Mortazawi, "Hard Horn Feeds for Quasi-Optical Amplifiers," Twentieth International Conference on Infrared and Millimeter-Waves, Conf. Dig., pp. 149-150, Dec. 1995
T. Ivanov and A. Mortazawi, "Quasi-Optical Microstrip Amplifiers Based on Multilayer Coupled Structures," Proceedings of IEEE Int. Symposium on Signals, Systems and Electronics, pp. 99-102, Oct. 1995
A. Martin and A. Mortazawi, "A Four Device Power Amplifier Based on an Extended Resonance Technique," IEEE AP/URSI Conference Digest, Newport Beach, CA, June 1995
T. Ivanov and A. Mortazawi, "Two Stage Double Layer Microstrip Spatial Amplifiers," IEEE MTT-S International Microwave Symposium Digest., pp. 589-592, May 1995
N. Sheth, T. Ivanov, A. Balasubramaniyan and A. Mortazawi, "A Nine HEMT Spatial Amplifier," IEEE MTT-S International Microwave Symposium Digest, pp. 1239-1242, May 1994
A. Balasubramaniyan, T. Ivanov and A. Mortazawi, "MESFET Based Spatial Power Combiners," IEEE Southcon 94, pp. 288-290, March 1994
A. Balasubramaniyan, J. Heinbockel and A. Mortazawi, "An Eight MESFET Periodic Spatial Power Combiner," IEEE MTT-S International Microwave Symposium Digest, pp. 611-614, June 1993
A. Mortazawi and B.C. De Loach Jr., "A Two Dimensional Power Combining Array Employing An Extended Resonance Technique," 17th IR-MMW Conf. Digest, Dec. 1992 (Refereed, International)
A. Mortazawi and B.C. De Loach Jr., "Multiple Element Oscillators Utilizing a New Power Combining Technique," IEEE MTT-S International Microwave Symposium Digest pp. 1093-1096, June 1992
J. Heinbockel, A. Mortazawi and T. Itoh, "A Periodic Spatial Power Combining MESFET Oscillator," IEEE MTT-S International Microwave Symposium Digest., pp. 545-548, June 1992
S. Kawasaki, A. Mortazawi and T. Itoh, "Spatial Harmonic Power Combining Transceiver," Progress in Electromagnetic Research Symposium, Cambridge, MA, July 1-5, 1991
M. Schoenberger, A, Biswas, A. Mortazawi and V.K. Tripathi, "Coupled Slot-Strip Coupler in Finline," IEEE MTT-S International Microwave Symposium Digest., pp. 751-753, June, 1991
A. Mortazawi, H. Foltz and T. Itoh, "Analysis and Experimental Results on Multiple Gunn Diode Power Combining Oscillators," URSI, International Radio Science Meeting, Ontario, Canada, 24-28 June 1991
H.D. Foltz, A. Mortazawi, J.H. Davis and T. Itoh, Nonlinear Analysis of Quantum Devices," IEEE MTT/AP, First International Workshop on Integrated Nonlinear Microwave and Millimeter wave Circuits, pp. 95-107, Oct. 1990, Germany
A. Mortazawi, D. Miller, D.P. Neikirk and T. Itoh, "Small Signal Measurements of the Microwave Impedance of QWITT Diodes," 20th European Microwave Conference, Sep. 1990
A. Mortazawi, S. Kavasaki and T. Itoh, “A Periodic Second Harmonic Power Combining Transceiver,” 1990 Asia-Pacific Microwave Conference-APMC’90, September 1990, Tokyo, Japan
A. Mortazawi, and T. Itoh, "A Second Harmonic Spatial Power Combining Oscillator," IEEE MTT-S International Microwave Symposium Digest, pp. 1213-1216, May 1990
A. Mortazawi and T. Itoh, "An Experimental Method for Large Signal Characterization of Solid State Negative Resistance Devices," URSI, National Radio Science Meeting, Boulder, CO., 3-5 Jan. 1990
A. Mortazawi, V. P. Kesan, D. P. Neikirk and T. Itoh, "A Self Oscillating QWITT Diode Mixer," Proc. 19th European Microwave Conf., pp. 715-718, Sep. 1989
V. P. Kesan, A. Mortazawi, D. P. Neikirk and T. Itoh, "Dc and Microwave Characterization of the Quantum Well Injection Transit Time (QWITT) Diode," URSI, Proc. Int. Symp. on Signals, Systems and Electronics, pp. 195-198, Sep. 1989
V. P. Kesan, A. Mortazawi, D. P. Neikirk and T. Itoh, "Microwave and Millimeter Wave QWITT diode Oscillator," IEEE MTT-S International Microwave Symposium Digest, pp. 487-490, June 1989
A. Mortazawi, V. P. Kesan, D. P. Neikirk and T. Itoh, "Periodic Monolithic Millimeter Wave Quantum Well Oscillator," Proc. of the 13th Int. Conf. on Infrared and mm Waves, pp. 47-48. Dec. 1988
L. Moorman, K. A. H. Van Leevween, G. V. Oppen, B. E. Sauer, A. Mortazawi, F. J. Galvez and P. M. Koch, "Two-Frequency Microwave Quenching of Highly Excited H Atoms," Conference Digest, ICPEAC XV, Brighton, GB, 1987
Other Published work
A. Mortazawi and B.C. De Loach Jr., "Spatial Power Combining Circuits Based on a Extended Resonance Method," Proceedings of the Workshop on Millimeter-Wave Power Generation and Beam Control, U.S. Army Missile Command, AL, September 1993
Invited Talks/Workshops
I have given many lectures at various RF and microwave industries including:
RF Microdevices, Raytheon, Harris Corporation, Lockheed Martin, Sony Erricsson, etc.
Invited Talk: Kyoto University, Japan, Low phase Noise injection Locked arrays for Solar Power Satellites, 2006
Invited Talk: University of Illinois, Urbana, Champaign, “Adaptive RF Circuits Based on Thin Film BST” September 2005
Invited Talk: DAPRA Workshop on 60 GHz Secure Communication Networks
Title: Technology Roadmap for 60 GHz Secure Networking
Invited Talk, Kyoto University, 2003 Japan-United States Joint Workshop on Space Solar Power System (JUSPS’03), J. Choi, A. Mortazawi and D. Pavlidis, “An approach for solar power conversion to high RF power for wireless transmission,” Workshop Proceeding
Invited Talk: IEEE MTTS 2003, Workshop on New Advances in Microwave and Millimeter-Wave Filters
Title: Ferroelectric based tunable RF filters
IEEE, University of Toronto Invited Talk on Millimeter-Wave Spatial Power Combining, 2002
Organizer of the workshop “Spatial and Quasi-Optical Power Combining Arrays,” IEEE MTT-S, June 2000
Workshop Presentation, “Spatial and Quasi-Optical Power Combining Arrays,” IEEE MTT-S, June 2000
Workshop Presentation, “RF Applications of BST Material,” IEEE MTT-S, June 2000
Workshop Presentation, “Spatially Combined Fault Tolerant Masthead Power Amplifiers,” IEEE Topical Workshop on Power Amplifiers for Wireless Communications, 11-12 September 2000, San Diego, CA
Invited: A. Mortazawi,” ARO Workshop on Spatial and Quasi-Optical Power Combining,” March 1997, Santa Barbara, CA
Invited: A. Mortazawi "An Extended Resonance Power Combining Amplifier," 4th Int. Workshop on Integrated Nonlinear Microwave and Millimeter-wave Circuits, October 1996, Duisburg, Germany
Invited: A. Mortazawi, "Workshop on Design Approaches for Integrated Circuit Antenna Modules," 1995 IEEE AP-S Int. Symp and URSI Radio Science Meeting, June 1995, CA
A. Mortazawi and B.C. De Loach Jr., "A Spatial Power Combining Circuit Based on a Extended Resonance Method," Workshop on Millimeter-Wave Power Generation and Beam Control, U.S. Army Missile Command, AL, September 1993, A summary of this presentation appeared in the proceedings of this workshop, pp. 275-279, 1993
Invited: Amir Mortazawi, "Quasi-Optical Power Combining, Components, Systems and Analysis," Millimeter and Microwave Quasi-Optical Power Combining Workshop sponsored by U.S. Army Research Office, Georgia Tech Research Institute, Georgia Tech Institute of Technology, Atlanta, 19-20 September 1991
Other Scholarly Work
Reviewer for the National Science Foundation
Reviewer for the IEEE Transactions on Microwave Theory and Techniques
Reviewer for the IEEE Microwave and Guided Wave Letters
Professional Contributions
Editor in Chief, IEEE Transactions on Microwave Theory and Techniques, Jan 2006- Present
Elected Member of the Administrative Committee (AdCom) IEEE Microwave Theory and Technique Society, 2006-2008
NSF Panel Member for various programs
Associate Editor, IEEE Transaction Microwave Theory and Techniques, Jan 2005-Dec. 2006
Secretary to Administrative Committee, IEEE MTT
Associate Editor for the IEEE Transactions Antennas and Propagation
Chair, Technical Program Committee on Active and Quasi-Optical Arrays, IEEE MTTS
Co-Chair, IEEE MTT-16 committee on systems applications, Phased Arrays
Member of the Technical Program Committee for the IEEE Antennas and Propagation Conference 1999
Guest Editor for the Special Issue of the IEEE Transactions Microwave Theory and Techniques, Dec. 1995
Member of the Steering Committee for the IEEE International Microwave Symposium, 1995
Member of the Technical Program Committee for the IEEE International Microwave Symposium, 1994 - present
Chaired the session "Active and Quasi-Optic Arrays," IEEE International Microwave Symposium, 1994
Education Chair, IEEE Orlando Section, 1994 - 1997
Chair, IEEE Antennas and Propagation/Microwave Theory and Techniques Orlando Chapter, September 1994 - September 1995
Vice Chair, IEEE Antennas and Propagation/Microwave Theory and Techniques, Orlando Chapter, 1993
Secretary, IEEE Antennas and Propagation/Microwave Theory and Techniques, Orlando Chapter, 1992
Local Arrangements, IEEE Antennas and Propagation/Microwave Theory and Techniques, Orlando Chapter, 1991
Member of the Technical Program Committee for the IEEE Southcon 1994
Organized and chaired the session "Microwave and Millimeter Wave devices and Circuits," IEEE Southcon 1994
Chaired the session "Semiconductors," the 17th International Conference on Infrared and Millimeter-Waves, Dec. 92, CALTECH