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Publications

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Journal Papers
    1. Shan He and C. E. Saavedra, "An Ultra-Low-Voltage and Low-Power x2 Subharmonic Downconverter Mixer," accepted in the IEEE Transactions on Microwave Theory and Techniques. (pdf file)

    2. A. M. El-Gabaly and C. E. Saavedra, "Broadband Low Noise Amplifier with Fast Power Switching for 3.1–10.6 GHz Ultra-Wideband Applications," IEEE Transactions on Microwave Theory and Techniques, vol. 59, no. 12, pp. 3146-3153, December 2011. (pdf file)
    3. A. M. El-Gabaly and C. E. Saavedra, "A Quadrature  Pulse Generator for Short-Range UWB Vehicular Radar Applications using a Pulsed Oscillator and a Variable Attenuator," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 58, no. 10, pp. 2285-2295, October 2011. (pdf file)

    4. Stanley S. K. Ho and C. E. Saavedra, "A Low-Noise Self-Oscillating Mixer using a Balanced VCO Load," IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 58, no. 8, pp. 1705-1712, August 2011. (pdf file)

    5. J. Xu, C. E. Saavedra and G. Chen, "An Active Inductor-Based VCO with Wide Tuning Range and High DC-to-RF Power Effciency," IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 58, no. 8, pp. 462-466, August 2011. (pdf file)
      - This was the #1 downloaded paper in the IEEE TCAS-II for the month of August 2011.

    6. J. Xu, C. E. Saavedra and G. Chen, "A 12 GHz-Bandwidth CMOS Mixer with Variable Conversion Gain Capability" IEEE Microwave and Wireless Component Letters, vol. 21, no. 10, pp. 565-567, 2011. (pdf file)

    7. J. Xu, C. E. Saavedra and G. Chen, "A CMOS wideband front-end chip using direct RF sampling mixer with embedded discrete-time filtering," Journal of Semiconductors, vol. 32, no. 8, pp. 1-8, Aug. 2011. (pdf file)

    8. A. M. El-Gabaly and C. E. Saavedra, "An Energy-Efficient Tunable Pulse Generator for 3.1–10.6 GHz UWB Applications Using a Variable Attenuator for Pulse Shaping", accepted in International Journal of Circuit Theory and Applications  (Wiley InterScience). (pdf file)

    9. Stanley S. K. Ho and C. E. Saavedra, "A 5.4 GHz Fully Integrated Low-Noise Mixer" Journal of Integrated Circuits and Systems, 
      Invited Paper      , vol. 6, no. 1, pp. 18-24, 2011. (pdf file)

    10. M. Wang and C. E. Saavedra, "Very Low Frequency Tunable Signal Generator for Neural and Cardiac Cell Stimulation" International Journal of Electronics (Taylor & Francis),  vol. 98, no. 9, pp. 1215-1227, Sept. 2011.  (pdf file)

    11. A. M. El-Gabaly and C. E. Saavedra, "Wideband Variable Gain Amplifier with Noise Cancellation," Electronics Letters, Vol. 47, No. 2, pp. 116-117, January 2011. (pdf file)

    12. Stanley S. K. Ho and C. E. Saavedra, "A CMOS Broadband Low-Noise Mixer with Noise Cancellation" IEEE Transactions on Microwave Theory and Techniques, Vol. 58,  No.5, pp. 1126-1132, May 2010. (pdf file)  
      The paper above was one of the Top 100 Documents accessed in the IEEE Xplore Digital Library in May 2010 (# 41) and was the #1 downloaded paper in the IEEE MTT Transactions in May 2010.       

    13. Zhiyu Ru, E. Klumperink, C. E. Saavedra, and B. Nauta, "A Tunable 300-800 MHz RF-Sampling Receiver Achieving 60 dB Harmonic Rejection and 0.8 dB Minimum NF in 65 nm CMOS," IEEE Journal of Solid-State Circuits, Vol. 45, No. 5, pp. 967-978, May 2010. (pdf file).
      The paper above was one of the Top 100 Documents accessed in the IEEE Xplore Digital Library in May 2010 (# 15).

    14. B. R. Jackson and C. E. Saavedra, "A Dual-Band Self-Oscillating Mixer for C-Band and X-Band Applications," IEEE Transactions on Microwave Theory and Techniques, Vol. 58, No. 2, pp. 318-323, 2010. (pdf file)

    15. C. E. Saavedra and Stanley Ho, "Optical Quasi-Circulator using Power Couplers and Optical Amplifiers,"  IEEE Photonics Technology Letters, Vol. 22, No. 9, pp. 604-606, May 2010. (pdf file)

    16. You Zheng and C. E. Saavedra, "Full 360º Vector-Sum Phase Shifter for Microwave System Applications," IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 57, No. 4, pp. 752-758, April 2010. (pdf file)

    17. Gideon Yong and C. E. Saavedra, "A Wideband Quadrature Generator IC using a Varactor-Compensated Feedback Network," Analog Integrated Circuits and Signal Processing, Vol. 63, No. 2, pp. 161-167, 2010. (pdf file)

    18. You Zheng and C. E. Saavedra, "Frequency Response Comparison of Two Active Inductor Topologies," Progress in Electromagnetics Research Letters, Vol. 13, pp. 113-119, 2010. (pdf file)

    19. You Zheng and C. E. Saavedra, "A Variable Gain Amplifier using a Very High-Speed OTA," Microwave and Optical Technology Letters, Vol. 52, No. 5, pp. 1112-1116, 2010. (pdf file)

    20. B. R. Jackson, F. Mazzilli and C. E. Saavedra, "A Frequency Tripler using a Subharmonic Mixer and Fundamental Cancellation," IEEE Transactions on Microwave Theory and Techniques, Vol. 57, No. 5, pp. 1083-1090, May 2009. (pdf file)

    21. You Zheng and C. E. Saavedra, "Active Quasi-Circulator MMIC using OTA's"  IEEE Microwave and Wireless Components Letters, Vol. 19, No. 4, pp. 218-220, April 2009. (pdf file)

    22. A. M. El-Gabaly and C. E. Saavedra, "Compact Low-Power 2.4 GHz QPSK Modulator in CMOS," Microwave and Optical Technology Letters, Vol.51, No. 5, pp. 1344-1348, May 2009. (pdf file)

    23. You Zheng and C. E. Saavedra, "Feedforward-Regulated Cascode OTA for Gigahertz Applications," IEEE Transactions on Circuits and Systems I: Regular Papers, Vol. 55, No. 12, pp. 3373-3382, Dec. 2008. (pdf file)

    24. B. R. Jackson and C. E. Saavedra, "A CMOS Ku Band 4x Subharmonic Mixer," IEEE Journal of Solid-State Circuits, Vol. 43, No. 6, pp. 1351-1359, June 2008. (pdf file)

    25. You Zheng and C. E. Saavedra, "An Ultra-Compact CMOS Variable Phase Shifter for 2.4 GHz ISM Applications,"  IEEE Transactions on Microwave Theory and Techniques, Vol. 56, No. 6, pp. 1349-1354, June 2008. (pdf file)

    26. You Zheng and C. E. Saavedra, "Ultra-Compact MMIC Active Bandpass Filter with a Wide Tuning Range," Electronics Letters, Vol. 44, No. 6, pp. 424-425, March 2008. (pdf file)

    27. You Zheng and C. E. Saavedra, "A Broadband CMOS Frequency Tripler using a Third-Harmonic Enhanced Technique," IEEE Journal of Solid-State Circuits, Vol. 42, No. 10, pp. 2197-2203, 2007. (pdf file)

    28. C. E. Saavedra and You Zheng, "Active Quasi-Circulator Realization with Gain Elements and Slow-Wave Couplers," IET Microwaves, Antennas and Propagation, Vol. 1, No. 5, pp. 1020-1023, 2007. (pdf file)

    29. C. E. Saavedra, "Microstrip Multiplexer with Compact In-Line Feed Structure," Microwave and Optical Technology Letters, Vol. 49, No. 12, pp. 3128-3130, 2007. (pdf file)

    30. B. R. Jackson and C. E. Saavedra, "A CMOS Subharmonic Mixer with Input and Output Active Baluns," Microwave and Optical Technology Letters, Vol. 48, No. 12, pp. 2472-2478, December 2006. (pdf file)

    31. C. E. Saavedra and B. R. Jackson, "Voltage-Variable Attenuator MMIC using Phase Cancellation," IEE Proceedings Circuits, Devices, and Systems, Vol. 153, No. 5, pp. 442-446, October 2006 (pdf file).

    32. C. E. Saavedra and You Zheng, “Ring-Hybrid Microwave Voltage-Variable Attenuator using HFET Transistors,”  IEEE Transactions on Microwave Theory and Techniques, Vol. 53, No. 7, pp. 2430-2434, July 2005. (pdf file)

    33. C. E. Saavedra, “A Microwave Frequency Divider using an Inverter Ring and Transmission Gates,” IEEE Microwave and Wireless Components Letters, Vol. 15, No. 5, pp. 330-332, May 2005. (pdf file)

    34. B. R. Jackson and C. E. Saavedra, “2.4 GHz Direct-Digital Binary Phase Shift Keying Modulator using a MEMS Switch,” Electronics Letters, Vol. 40, No. 24, pp. 1539-1540, Nov. 2004. (pdf file)

    35. Joseph Fraresso and C.E. Saavedra, “Narrowband Bandpass Filter Exhibiting Harmonic Suppression,” Electronics Letters, Vol. 39, No. 16, pp. 1189-1190, August 2003. (pdf file)

    36. C. E. Saavedra, “A Microstrip Ring Resonator using Quarter Wave Couplers,” Electronics Letters, Vol. 37, No. 11, pp.694-695, May 2001. (pdf file)

    37. C. E. Saavedra, W. Wright, and R. C. Compton, “A Circuit, Waveguide, and Spatial Power Combiner for Millimeter-Wave Amplification,” IEEE Transactions on Microwave Theory and Techniques, Vol. 47, pp. 605-613, May 1999. (pdf file)

    38. C. E. Saavedra, W. Wright, K. Y. Hur, and R. C. Compton, “A Millimeter-Wave Quasi-Optical Amplifier Array using Inclined-Plane Horn Antennas,” IEEE Microwave and Guided Wave Letters, Vol. 8, pp. 81-83, February 1998. (pdf file)


      Book Chapters

    39. C. E. Saavedra, "Frequency Multiplier Design Techniques and Applications" in CMOS Nanoelectronics, Edited by K. Iniewski, McGraw-Hill, pp. 163-184, 2011.


      Refereed Conference Proceedings

    40. B. R. Jackson and C. E. Saavedra, "A Divide-by-Three Regenerative Frequency Divider using a Subharmonic Mixer," NORCHIP Conference,  Lund, Sweden, November 2011. (pdf file)

    41. J. Xu, C. E. Saavedra and G. Chen, "5.4 GHz Reconfigurable Quadrature Amplitude Modulator using Very High-Speed OTA's,"  IEEE International Microwave Symposium, Baltimore, USA, June 2011. (pdf file)

    42. M. Wang and C. E. Saavedra, "Reconfigurable Broadband Mixer with Variable Conversion Gain," IEEE International Microwave Symposium, Baltimore, USA, June 2011. (pdf file)

    43. M. Wang and C. E. Saavedra, "Fully Monolithic Single-Sideband Mixer with Sideband Selection" IEEE International Microwave Symposium, Baltimore, USA, June 2011. (pdf file)

    44. J. Xu, C. E. Saavedra and G. Chen, "Noise Analysis of the CG-CS low-noise transconductance amplifier", International Conference on Electron Devices and Solid-State Circuits, pp. 1-2, Hong Kong, Sept. 2011.

    45. A. M. El-Gabaly and C. E. Saavedra, "A 24 GHz Quadrature Pulsed Oscillator for Short-Range UWB Vehicular Radar Applications," IEEE International Symposium on Circuits and Systems (ISCAS), pp. 1283-1286, Rio de Janeiro, Brazil, May 2011. (pdf file)

    46. Shan He and C. E. Saavedra, "A 19 - 26 GHz Balanced Amplifier in 130 nm CMOS Technology" IEEE Sarnoff Symposium, Princeton, New Jersey, May 2011. (pdf file)

    47. Stanley S. K. Ho and C. E. Saavedra, "A 5.4 GHz Fully Integrated Low-Noise Mixer," 23rd Symposium on Integrated Circuits and Systems Design (SBCCI), pp. 14-17, São Paulo, Brazil, September 2010. (pdf file)

    48. Jiangtao Xu, C. E. Saavedra, and G. Chen, "Wideband Microwave OTA with Tunable Transconductance using Feedforward Regulation and an Active Inductor Load," IEEE NEWCAS Conference, pp. 93-96, Montréal, Canada, June 2010. (pdf file)

    49. B. R. Jackson and C. E. Saavedra, "A CMOS Amplifier with Third-Order Intermodulation Distortion Cancellation," IEEE Topical Meeting on Silicon Monolithic Circuits in RF Systems (SiRF), pp. 217-220, San Diego, CA, 2009. (pdf file) 
      Best Student Paper Award.        

    50. G. Yong and C. E. Saavedra, "A Fully Integrated S-Band Vector Phase Shifter in CMOS Technology," IEEE Topical Meeting on Silicon Monolithic Circuits in RF Systems (SiRF), pp. 45-48, San Diego, California, 2009. (pdf file)

    51. Z. Ru, E. Klumperink, C. E. Saavedra and B. Nauta, “A Tunable 300-800 MHz RF-Sampling Receiver Achieving 60 dB Harmonic Rejection and 0.8 dB Minimum NF in 65 nm CMOS,” IEEE Radio Frequency Integrated Circuits (RFIC)  Symposium, pp. 21-24, Boston, USA, June 2009. (pdf file)

    52. S. S. K. Ho and C. E. Saavedra, “Frequency Doubler Employing Active Fundamental Cancellation,” IEEE Sarnoff Symposium, Princeton, New Jersey, USA, April 2009. (pdf file)

    53. G. S. K. Yong and C. E. Saavedra, “A Wideband Feedback Compensated Quadrature Generator,”  IEEE Sarnoff Symposium, Princeton, New Jersey, USA, April 2009. (pdf file)

    54. B. R. Jackson and C. E. Saavedra, “Variable MEMS Capacitors for Millimeter-Wave Integrated Circuit Filtering Applications,” XV IBERCHIP Workshop, pp. 467-470, Buenos Aires, Argentina, March 2009. (pdf file)

    55. C. E. Saavedra and Wei Yang, “2 GHz Active Bandstop Filter using Operational Transconductance Amplifiers,” XV IBERCHIP Workshop, pp. 477-480, Buenos Aires, Argentina, March 2009. (pdf file)

    56. A. M. El-Gabaly and C. E. Saavedra, "A Compact Tunable 5 GHz-Band Quadrature Downconverter with an integrated 90° Phase Shifter and Balun," URSI General Assembly, Paper Number: DP2.3 Chicago, USA, August 2008. (pdf file)

    57. A. M. El-Gabaly and C. E. Saavedra, "A Low-Voltage Fully Integrated 5 GHz Low Noise Amplifier in 0.18 μm CMOS,"
      URSI General Assembly, Paper Number: DP1.8, Chicago, USA, August 2008. (pdf file)

    58. G. Yong and C. E. Saavedra, "A Compact Capacitor-Compensated Wideband Balun in CMOS Technology," 24th Biennial Symposium on Communications, pp. 306-309, Kingston, Ontario, Canada, June 2008. (pdf file)

    59. C. E. Saavedra, "Diplexer using a Circulator and Interchangeable Filters," IEEE Int. Carib. Conf. Devices, Circuits, and Systems, Cancun, Mexico, April 2008. (pdf file)

    60. You Zheng and C. E. Saavedra, "A Bipolar MMIC Frequency Tripler," IEEE Int. Carib. Conf. Devices, Circuits, and Systems, Cancun, Mexico, April 2008. (pdf file)

    61. B. R. Jackson and C. E. Saavedra, "A 3 GHz CMOS Quadrature Oscillator Using Active Superharmonic Coupling," European Microwave Conference and European Microwave Integrated Circuits Conference, pp. 1109-1112, Munich, Germany, October 2007. (pdf file)

    62. G. F. Perez-Sanchez, A. Morales-Acevedo, B. R. Jackson, and C. E. Saavedra, "Thin Film Bulk Acoustic Wave Resonators for their Application in Microwave Filters," IEEE Int. Conf. on Electrical and Electronics Eng., pp. 353-356, Mexico City, Mexico, September 2007.

    63. A. M. El-Gabaly, B. R. Jackson, and C. E. Saavedra, "An L-Band Direct-Digital QPSK Modulator in CMOS," URSI International Symposium on Signals, Systems, and Electronics (ISSSE), pp. 563-566, Montréal, Canada, July 2007. (pdf file)

    64. You Zheng and C. E. Saavedra, "Coherent BPSK Demodulator MMIC using an Anti-Parallel Synchronization Loop,"
      IEEE Radio Frequency Integrated Circuits (RFIC) Symposium, pp. 657-660, Honolulu, Hawaii, 2007. (pdf file) Patent pending

    65. You Zheng and C. E. Saavedra, "A Microwave OTA using a Feedforward-Regulated Cascade Topology," IEEE International Symposium on Circuits and Systems (ISCAS), pp. 1887-1890, New Orleans, USA, May 2007. (pdf file)

    66. B. R. Jackson, You Zheng and Carlos E. Saavedra, "A CMOS Direct-Digital BPSK Modulator using an Active Balun and Common-Gate Switches," IEEE International Symposium on Circuits and Systems (ISCAS), pp. 2534-2537, New Orleans, USA, May 2007. (pdf file)

    67. C. E. Saavedra and You Zheng, "A BPSK Modulator using a Ring Hybrid and HFET Switches," IEICE/IEEE Asia-Pacific Microwave Conference, pp. 1665-1668, Yokohama, Japan, December 2006. (pdf file)

    68. You Zheng and C. E. Saavedra, "Compact CMOS VCO using a Transistor for Frequency Control," ANTEM/URSI International Symposium on Antenna Technology and Applied Electromagnetics, pp. 115-118, Montréal, Canada, July 2006. (pdf file)

    69. B. R. Jackson and C. E. Saavedra, “Frequency Shift Keying (FSK) Modulator using a MEMS Switch,” XII IBERCHIP Workshop, pp. 234-237, San José, Costa Rica, March 2006.

    70. B. R. Jackson and C. E. Saavedra, “An L-Band Frequency Doubler using a Time-Delay Technique,” IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems (SiRF), pp. 131-134, San Diego, California, USA, January 2006. (pdf file)

    71. C. E. Saavedra, “Reconfigurable Bandpass Filter Structure using an SPDT MEMS Switch,” European Microwave Conference (EuMC),pp. 557-560, Paris, France, October 2005. (pdf file)

    72. C. E. Saavedra, A. Morales-Acevedo, B. R. Jackson, “Microwave Bandpass Filters using Zinc Oxide Resonator Membranes,” XIV International Materials Research Congress, Cancún, México, August 2005. (Abstract & Poster)

    73. You Zheng and C. E. Saavedra, “A Pulse-Width Modulator using a Phase-Locked Loop Variable Phase Shifter,” IEEE International Symposium on Circuits and Systems (ISCAS), pp. 3639-3642, Kobe, Japan, May 2005. (pdf file)

    74. You Zheng and C. E Saavedra, “A BPSK Demodulator Circuit using an Anti-Parallel Synchronization Loop,” IEEE International Symposium on Circuits and Systems (ISCAS),pp. 5433-5436, Kobe, Japan, May 2005. (pdf file)

    75. Yang Zhang and C. E. Saavedra, “A Voltage-Variable Time Delay Element for Random Bit Waveforms,” IEEE ICCDCS, Punta Cana, Dom. Republic, pp. 183-187, November 2004. (pdf file)

    76. Yang Zhang and C. E. Saavedra, ”A Nonoverlapping Clock Generator Circuit using Bipolar Differential Pairs,” IEEE ICCDCS, Punta Cana, Dom. Republic, pp. 330-333, November 2004. 

    77. A. Tan and C. E. Saavedra, “A Binary Phase Shift Keying Demodulator using Pulse Detection,” IEEE International Conference on Electrical and Electronics Engineering, pp. 49-52, September 2004. (pdf file)

    78. You Zheng and C. E. Saavedra, “A 0 ° to 180 ° Variable Phase Shifter using Frequency Multiplication,” IEEE International Conference on Electrical and Electronics Engineering, pp. 601-604, September 2004.

    79. C. E. Saavedra, “A Frequency Divider with Variable Division Ratio,” IEEE International Conference on Electrical and Electronics Engineering, pp. 605-609, September 2004.

    80. C. E. Saavedra, “A Microwave Divide-by-Four Frequency Divider using an Inverter Ring,” 22nd Biennial Symposium on Communications, pp. 418-420, Kingston, Canada, June 2004.

    81. C. E. Saavedra and Yang Zhang, "A Clock Frequency Doubler using a Passive Integrator and Emitter-Coupled Comparator Circuit," IEEE Canadian Conference on Electrical and Computer Engineering, pp. 137-140, Niagara Falls, Canada, May 2004.

    82. Yang Zhang and C. E. Saavedra, "A Voltage-Variable Time Delay Element for Clock Waveforms," IEEE Canadian Conference on Electrical and Computer Engineering, pp. 551-554, Niagara Falls, Canada, May 2004.

    83. You Zheng and C. E. Saavedra, "A Bipolar Voltage Variable Attenuator for Radio Frequency Applications," IEEE Canadian Conference on Electrical and Computer Engineering, pp. 95-98, Niagara Falls, Canada, May 2004. (pdf file)

    84. C. E. Saavedra, “Compact Low-Pass Filter using a Slow-Wave Structure,” 45th IEEE Midwest Symposium on Circuits and Systems, Tulsa, Oklahoma, USA, August 2002.

    85. J. Sewter and C. E. Saavedra, “Microstrip Ring Resonator using Slow Wave Structure Exhibiting Harmonic Suppression,” International Symposium on Antenna Technology and Applied Electromagnetics (ANTEM), Montréal, Canada, pp. 153-155, July 2002. (pdf file)

    86. C. E. Saavedra, W. Wright, and R. C. Compton, “A passive horn structure with transitions to microstrip for quasi-optical amplifier arrays,” SPIE Proceedings, vol. 3465, pp. 373-382, San Diego, California, July 1998. (pdf file)

    87. C. E. Saavedra, M. J. Vaughan, and R. C. Compton, “An M-PSK Modulator for Quasi-Optical Wireless Array Applications,” IEEE International Microwave Symposium Digest, pp. 1243-1246, 1996. (pdf file)

    88. C. E. Saavedra, et. al. “Hole Barrier Bipolar Transistors using InGaP/GaAs,” 19th Workshop on Compound Semiconductors and Integrated Circuits in Europe, Stockholm, Sweden, May 1995. (Abstract)

    89. M. Shur, B. Gelmont, C. Saavedra, and G. Kelner, “Potential of wide bandgap semiconductor devices for high-temperature applications,” Institute of Physics Conference, Ser. No. 137, pp. 465-470, 1993. (pdf file) 

Lectures and/or Invited Talks
  • "Wideband Operational Transconductance Amplifiers for Gigahertz Applications", IEEE Southern Alberta Section, joint Solid-State Circuits Chapter & Circuits and Systems Chapter talk, Calgary, Alberta, April 1, 2011.
  • "Layout Techniques for IC Design," three-day short-course delivered at CINVESTAV, Guadalajara, México, December 7 to 9, 2010.
  • "CMOS RF Integrated Circuits for Broadband Wireless Communications," IBM Microelectronics, Hopewell Junction, New York, USA, October 11, 2010.
  • "Front-End RF Integrated Circuits for Communications Applications" Universidade de São Paulo, Brazil, September, 2010.
  • "Advances in Mixer Design: Subharmonic Mixers and Applications," Plenary Talk, joint IEEE Col. Workshop on Electron Devices and IEEE Col. Workshop on Circuits and Systems, Bogotá, Colombia, October 6, 2009.
  • "Frequency Multipliers: Design Techniques and Applications," CMOS-ET Workshop, Vancouver, Canada, Sept. 24, 2009.
  • "Advances in CMOS Subharmonic Mixers," University of British Columbia, Vancouver, Canada, September 24, 2009.
  • "CMOS Subharmonic Mixers and Applications," International Microwave Symposium WME workshop, Boston, MA, USA
    June 8, 2009.
  • "Wideband RF Integrated Circuits for Wireless Applications," SiGe Semiconductor, Ottawa, Canada, April 21, 2009.
  • "Oscillation and Mixing Circuits using Harmonic Signals," Communications Research Centre (CRC), Ottawa, Canada,
    February 20, 2008.
  • "Front-End Microwave Circuits and Sytems," Universiteit Twente, Enschede, The Netherlands, December 14, 2006.
  • "Microelectronic Circuits for Microwave Communications using CMOS Technology," Universidad del Valle, Santiago de Cali, Colombia, July 14, 2006.
  • "Microelectronic Circuits for Microwave Communications using CMOS Technology," Universidad de Los Andes, Bogotá, Colombia, July 6, 2006.
  • "Microwave MEMS and CMOS Integrated Circuits for Communications and Telemetry," Gennum Corporation, Burlington, Ontario, Canada, May 26, 2006.
  • “Negative Index of Refraction Metamaterials and their Applications,” Universidad Autonoma del Estado de Hidalgo, México, August 26, 2005.
  • “3 GHz to 9 GHz Silicon Germanium Frequency Tripler,” IBM Microelectronics, Hopewell Junction, NY, USA, December 2004.
  • “Active and Passive Millimeter-Wave Circuits for Wireless Technology,” Rensselaer Polytechnic Institute, Troy, New York, USA, March 2000.
  • “Active and Passive Millimeter-Wave Circuits for Wireless Technology,” Department of Electrical Engineering and Computer Science, Syracuse University, Syracuse, New York, March 2000.
  • "Millimeter-Wave Gratings and Horns for Amplifier Array Applicatons," Cornell Nanofabrication Facility Annual Affiliates Meeting, Ithaca, New York, October 1997.
  • “InGaP/GaAs Hole Barrier Bipolar Transistors,” Fraunhofer Institute for Applied Solid State Physics, Freiburg, Germany, May 1995.
Last Revised: 18-January-2012.