Publications:
Refereed Journals
1. S Babak Hamidi and Debasis
Dawn, "A 2-Bit Voltage-Controlled Oscillator (VCO) for Multi-Band Wireless Applications", IEEE Microwave and Wireless Components Letters (IEEE MWCL), vol 32, issue 11,
pp 1307-1310, Nov 2022.
2. S Babak Hamidi and Debasis
Dawn, "A New Pathway towards Implementing a Fully Integrated Band-Switchable CMOS Power Amplifier Utilizing Bit Optimized Reconfigurable Network (BORN)", IEEE Transactions on Very Large Scale Integration Systems (IEEE TVLSI), vol 30, issue 9,
pp 1294-1305, Sep 2022.
3. S Babak Hamidi and Debasis
Dawn, "Fully integrated CMOS tunable power amplifier using reconfigurable input/interstage/output matching networks", Analog Integrated Circuits and Signal Processing, vol 107, issue 1,
pp 73-82, Apr 2021.
4. D. Mitra, S.B. Hamidi, P. Roy, C. Biswas, A. Biswas and Debasis
Dawn, "Radio frequency reliability studies of CMOS RF integrated circuits for ultra-thin flexible packages", Electronics Letters, vol 156, issue 6,
pp 280-282, Mar 2020.
5. P. Roy and D.
Dawn, "Fully integrated CMOS power amplifier using resistive current
combining technique", IET Microw. Antennas &
Propag., vol 12, issue 5,
pp 826-832, Apr 2018.
6. P. Roy and D.
Dawn, "A High Power Fully Integrated Single-Chip CMOS Transmitter for
Wireless Communication of Unmanned Aircraft System", Microw.
Opt. Technol. Lett., vol.59, No. 2: 432-439, Feb 2017.
7. D. Mitra, P. Roy and D. Dawn, "A Variable Gain
CMOS Phase Shifter for Phased Array Antenna Applications", Microw. Opt. Technol. Lett., vol. 59, No. 2: 324-328, Feb
2017.
8. P.
Roy and D. Dawn, "A
high-power and high-efficiency CMOS VCO", Microw. Opt. Technol. Lett., 57: 2437-2441, Oct 2015.
9. P.
Roy and D. Dawn, "High-power
and high-efficiency complementary metal-oxide-semiconductor voltage-controlled
oscillator for automatic dependent surveillance-broadcast system", IET Microw.
Antennas & Propag., Vol 10, Oct 2015.
10. E.
Juntunen, D.
Dawn, J. Laskar, and J. Papapolymerou,
"CMOS
45GHz Vector Modulator with Gain/Phase Correction Through Calibration", Electronics Letters, vol. 49 iss. 4, pp 267-269, Feb. 2013.
11. E.
Juntunen, D.
Dawn, J. Laskar, and J. Papapolymerou,
"High-Power, High-Efficiency CMOS Millimeter-Wave Oscillators", IET Microw.
Antennas Propag., vol. 6 iss.
10, pp 1158-1163, 2012.
12. E.
Juntunen, Debasis
Dawn, Stephane Pinel, and Joy Laskar,
correction to "A
High-Efficiency, High-Power Millimeter-Wave Oscillator Using A Feedback Class-E
Power Amplifier in 45-nm CMOS", IEEE
Microwave and Wireless Components Letters, vol. 21, no. 10, pp. 574, Oct. 2011.
13. E.
Juntunen, Debasis
Dawn, Stephane Pinel, and Joy Laskar,
"A
High-Efficiency, High-Power Millimeter-Wave Oscillator Using A Feedback Class-E
Power Amplifier in 45-nm CMOS", IEEE
Microwave and Wireless Components Letters, vol. 21, no. 8, pp. 430-432,
Aug. 2011.
14. E. Juntunen, M.C.-H
Leung, F. Barale, A. Rachmadugu,
D. A. Yeh, B. G. Perumana,
P. Sen, D. Dawn, S. Sarkar, S. Pinel,
and J. Laskar, "A 60-GHz 38-pJ/bit 3.5-Gb/s 90-nm CMOS OOK
Digital Radio", IEEE Trans. Microwave
Theory Tech., vol. 58, No. 2, pp. 348-355, Feb. 2010.
15. Debasis Dawn, Padmanava
Sen, Saikat
Sarkar, Bevin Perumana, Stephane Pinel,
and Joy Laskar, "60-GHz Integrated Transmitter
Development in 90-nm CMOS", IEEE Trans. Microwave
Theory Tech., vol. 57, No. 10, pp. 2354-2367, Oct. 2009.
16. S. Pinel, P. Sen, S. Sarkar, B. Perumana,
D. Dawn, D. Yeh,
F. Barale, M. Leung, E. Juntunen,
P. Vadivelu, K. Chuang, P. Melet,
G. Iyer, and J. Laskar, "60GHz
Single-Chip CMOS Digital Radios and Phased Array Solutions for Gaming and
Connectivity", IEEE Journal on Selected
Areas in Comm., vol. 27, No. 8, pp. 1347-1357, Oct. 2009.
17. Padmanava Sen, Saikat Sarkar, Debasis
Dawn, Stephane Pinel, and Joy Laskar,
"Integrated
VCO with UP/Down Converter for Si-based 60GHz WPAN Applications", IEEE Microwave and Wireless Components Letters, vol.
18, No. 2, pp . 139-141, Feb. 2008.
18. Joy Laskar, Stephane Pinel, Debasis Dawn, Saikat
Sarkar, Bevin Perumana, and Padmanava
Sen, "The
Next Wireless Wave is a Millimeter Wave", Microwave Journal, vol. 50, No. 8, pp. 22-36, Aug. 2007.
19. Debasis Dawn, Yoji Ohashi, and
Toshihiro Shimura, "A Novel Electromagnetic Bandgap Metal Plate for Parallel
Plate Mode Suppression in Shielded Structures", IEEE Microwave and Wireless Components Letters, vol. 12, No. 5, pp.
166-168 May 2002.
20. Debasis Dawn, "Analysis
and Design of a Novel Radial Folded Waveguide Structure for Feeder of a Planar
Radial Line Antenna", International
Journal of RF and Microwave Computer-Aided Engineering, vol. 9 No. 5, pp.
415-423, Sept. 1999.
21. Debasis Dawn, "Analysis and Design
of Folded Waveguide as Feeder for Planar Radiating Structure", Journal of Electromagnetic Waves and
Applications, vol. 13, No. 6 pp. 767-780 1999.
22. Tsukasa
Yoneyama and Debasis
Dawn, "Optical Intensity Modulator Using Inverted Slot Line at 60 GHz", "Optical Quantum Electronics, Chapman &
Hall, U. K. ", the special
issue on "Microwave-Optical Interactions", vol.30, No. 11-12, pp. 985-993
Dec. 1998.
23. Debasis Dawn and Tsukasa Yoneyama, "Periodic Metal Plate Loaded Dielectric
Slab Antenna with Broadside Radiation", IEEE Transactions on Antennas and Propagation, Vol. 43, No, 10, pp.
1076-1081 Oct.1995.
Refereed Conference Proceedings
1. Dipankar Mitra, S. Babak Hamidi, Palash Roy, and Debasis Dawn, "Reliability Studies of Fully Integrated CMOS Power Amplifier on Thinned Substrate for Flexible Electronics", 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, July 2023.
2. S. Babak Hamidi, and Debasis Dawn, "A Fully-Integrated Band-Switchable CMOS Low Noise Amplifier", IEEE Wireless and Microwave Technology Conf. (WAMICON), April 2023.
3. S. Babak Hamidi, and Debasis Dawn, "A Fully-Integrated Reconfigurable CMOS Power Amplifier Utilizing a Novel Impedance Matching Topology", 15th IEEE Dallas Circuits and Systems Conference (DCAS 2022), June 2022.
4. S. Babak Hamidi, Suman Saripalli and Debasis Dawn, "A Fully-Integrated Band-Switchable CMOS Power Amplifier for Wireless Applications", IEEE Wireless and Microwave Technology Conf. (WAMICON), April 2021.
5. Debasis Dawn , Jabir Mohammed Patel, Mohammad Wasil Nasry, and S. Babak Hamidi "A Novel RF Energy Harvester", IEEE MTT-S International Microwave and RF Conference (IMaRC), Dec 2019.
6. S. Babak Hamidi, and Debasis Dawn, "A 900/1900-MHz Band-Switchable CMOS Power Amplifier", IEEE MTT-S International Microwave and RF Conference (IMaRC), Dec 2019.
7. Arka Biswas, S. Babak Hamidi, Chitralekha
Biswas, Palash Roy, Dipankar Mitra and Debasis Dawn, "A Novel CMOS RF Energy
Harvester for Self-Sustainable Applications", IEEE Wireless and Microwave Technology Conf. (WAMICON), April 2018.
8. Palash
Roy, S. Babak Hamidi and Debasis Dawn, "Fully
Integrated LTE-advanced Band-Switchable High-Gain CMOS Power Amplifier", IEEE International Conf. on
Electro/Information Technology (EIT), May 2017.
9. S.
Babak Hamidi and Debasis Dawn, "Fully
Integrated LTE-Band CMOS Tunable Power Amplifier", IEEE Wireless and Microwave Technology Conf. (WAMICON), April 2017.
10. Palash
Roy and Debasis Dawn, "Single-chip
CMOS Transmitter for Automatic Dependent Surveillance-Broadcast (ADS-B) System",
IEEE International Conf. on
Electro/Information Technology (EIT), May 2016.
11. Dipankar
Mitra, Palash Roy and Debasis Dawn, "A Variable High Gain and High Dynamic Range CMOS
Phase Shifter for Phased Array Beamforming Applications", IEEE International Conf. on Electro/Information Technology (EIT), May
2016.
12. Dipankar
Mitra, Alarka Sanyal, Palash Roy and
Debasis Dawn, "A Variable Gain CMOS Phase Shifter for Phased Array
Beamformer Applications", 3rd
International Conference on Foundations and Frontiers in Computer,
Communication and Electrical Engineering, ISBN: 978-1-138-02877-7, Jan. 2016.
13. Palash
Roy and Debasis Dawn, "A High-Power
and High-Efficiency CMOS VCO for Automatic Dependent Surveillance-Broadcast
(ADS-B) System", IEEE International Conf.
on Electro/Information Technology (EIT), May 2015.
14. Debasis Dawn, "60GHz CMOS Transmitter
Front-end with Built-in Temperature Sensor", Asia Pacific Microwave Conference
(APMC), Sendai, Japan, Nov. 2014.
15. Debasis Dawn, "Millimeter-Wave CMOS
Radio Frequency Integrated Circuits Development and its Potential Applications"
(Invited), Asia Pacific Microwave
Conference (APMC), Sendai, Japan, Nov. 2014.
16. Debasis Dawn "Millimeter-Wave CMOS Switching
Power Amplifiers", IEEE MTT International
Microwave and RF Conference (IMaRC) Dec. 2013.
17. A. Sanyal, A. Mendoza-Radal, B.
Ijaz, and D. Dawn "CMOS Phase
Shifter for Conformal Phased Array Beamformer Applications", IEEE International Conference on Wireless
for Space and Extreme Environments (WiSEE) Nov.
2013.
18. B.
Ijaz, A. Sanyal, A. Mendoza-Radal,
S. Roy, I. Ullah, M. Reich, D. Dawn, B.
Braaten, N. Chamberlain, and D. E. Anagnostou "Gain Limits of Phase Compensated Conformal
Antenna Arrays on Non-Conducting Spherical Surfaces using the Projection Method",
IEEE International Conference on Wireless
for Space and Extreme Environments (WiSEE) Nov.
2013.
19. C.
Patterson, D. Dawn, and J. Papapolymerou "A W-Band CMOS PA Encapsulated in an Organic
Flip-Chip Package", IEEE MTT-S Int.
Microwave Symp. Montreal, Canada, June 2012.
20. E. Juntunen, W. Khan, C. Patterson, S. Bhattacharya, D. Dawn, J. Laskar
and J. Papapolymerou "An LCP Packaged High-Power,
High-Efficiency CMOS Millimeter-Wave Oscillator", IEEE MTT-S Int. Microwave Symp. Baltimore,
MD, June 2011.
21. S.
Shin, D. Dawn, D. Yeh and J. Laskar "A Model Inaccuracy Aware Design Methodology of
Millimeter-wave CMOS Tuned Amplifiers", Wireless and Microwave Technology Conference (WAMICON), 2011 IEEE 12th
Annual, April 2011.
22. N. Mallavarpu, D. Dawn,
and J. Laskar "Temperature-Dependent Scalable
Large-Signal CMOS Device Model Developed for Millimeter-Wave Power Amplifier
Design", IEEE MTT-S Int. RFIC Symp. Baltimore, MD, June 2011.
23. V. Sridharan, A. Goyal, S. Sitaraman,
N. Kumbhat," N. Sankaran, H. Chan, F. Liu, D. Dawn, V. Nair, T. Kamgaing, F. Juskey, V. Sundaram,
and R. Tummala "Ultra-miniaturized WLAN RF receiver with chip-last
GaAs embedded active", 61st
IEEE Electronic Components and Technology Conference (ECTC), pp. 1371-1376,
2011.
24. J. Laskar, S. Pinel, S. Sarkar, P.
Sen, B. Perumana, D. Dawn, M. Leung, F. Barale, D. Yeh, J. Shin, S. Hsiao, K. Chuang, E. Juntunen,
G. Iyer, A. Muppalla and P.
Melet "On the Development of CMOS Sub-THz Phased
Array Technology for Communication/Sensing Nodes", IEEE MTT-S Int. Microwave Symp. Anaheim,
CA, May 2010.
25. Debasis Dawn, S. Sarkar, P. Sen, B. Perumana, M. Leung, N. Mallavarpu,
S. Pinel, and J. Laskar
"60GHz CMOS Power Amplifier with 20-dB-Gain and 12dBm Psat",
IEEE MTT-S Int. Microwave Symp. Boston, MA, pp. 537-540, Jun. 2009.
26. P.
B. Vadivelu, P. Sen, S. Sarkar, D. Dawn, S. Pinel, and J. Laskar "Integrated CMOS mm-wave Phase Shifters for Single
Chip Portable Radar", IEEE MTT-S Int.
Microwave Symp. Boston, MA, pp. 565-568, Jun. 2009.
27. Joy Laskar, Stephane Pinel, Saikat Sarkar, Padmanava Sen,
Bevin Perumana, M. Leung, Debasis Dawn, David Yeh, F. Barale, K. Chuang, G. Iyer, J-H.
Lee, and P. Melet, "60GHz CMOS/PCB Co-Design And Phased Array Technology", IEEE Custom Integrated Circuits Conference (CICC) pp. 453-458, 2009.
28. Joy Laskar, Stephane Pinel, Debasis Dawn, Saikat
Sarkar, Padmanava Sen, Bevin Perumana,
David Yeh, and F. Barale, "60GHz
Entertainment Connectivity Solution", 2009
IEEE International Conference on Ultra-WideBand, pp.
17-21, Sept. 2009.
29. D. Yeh, A. Chowdhury, R. Pellard, S.
Pinel, S. Sarkar, P. Sen, B. Perumana,
D. Dawn, E. Juntunen,
M. Leung, H-C. Chien, Y-T. Hsueh, Z. Jia, J. Laskar and G-K. Chang "Millimeter-wave Multi-gigabit IC
Technologies for Super- Broadband Wireless Over Fiber Systems", Optical Fiber Communication (OFC), 2009.
30. N. Mallavarpu, D. Dawn,
S. Sarkar, P. Sen, S. Pinel, and J. Laskar "Temperature-Dependent Millimeter-Wave Scalable
Large-Signal Model for 90nm CMOS"," "Asia
Pacific Microwave Conference (APMC), Singapore, pp. 1-4, Dec. 2008.
31. Debasis Dawn, Saikat
Sarkar, Padmanava Sen, Stephane Pinel,
and Joy Laskar "60GHz Silicon-Based Tunable
Amplifier", 38th European
Microwave Conf. (EuMC), Amsterdam, The
Netherlands, pp. 452-455, Oct. 2008.
32. Joy Laskar, Stephane
Pinel, Debasis
Dawn, Saikat Sarkar, Padmanava
Sen, Bevin Perumana, David Yeh,
and Francesco Barale "Co-Design of Fully Integrated
60GHz CMOS Digital Radio in QFN Package", 38th
European Microwave Conf. (EuMC), Amsterdam, The
Netherlands, pp. 5-8, Oct. 2008.
33. Debasis Dawn, S. Sarkar, P. Sen, B. Perumana, D. Yeh, S. Pinel, and J. Laskar "17-dB-Gain
CMOS Power Amplifier at 60GHz", IEEE
MTT-S Int. Microwave Symp. Atlanta, GA, pp.
859-862, Jun. 2008.
34. Saikat Sarkar, Padmanava Sen,
Bevin Perumana, David Yeh, Debasis Dawn, Stephane Pinel, and Joy Laskar, "60GHz
Single-Chip 90nm CMOS Radio with Integrated Signal Processor", IEEE MTT-S Int. Microwave Symp. Atlanta, GA, Jun. 2008.
35. Joy Laskar, Stephane Pinel, Saikat Sarkar, Padmanava Sen, Bevin Perumana,
David Yeh, F. Barale, and Debasis Dawn, "A Transceiver for 60GHz
High Data Rate Wireless Transmission", IEEE
MTT-S Int. Microwave Symp. Workshop, Atlanta, GA, Jun. 2008.
36. Joy Laskar, Stephane Pinel, Saikat Sarkar, Padmanava Sen, Bevin Perumana, Debasis Dawn, David Yeh,
and "F. Barale, "A SOC/SOP Co-design approach for mmW CMOS in QFN Technology", IEEE Custom Integrated Circuits Conference (CICC) pp. 73-80, "2008.
37. S. Pinel, S. Sarkar, P. Sen,
B. Perumana, D. Yeh, Debasis Dawn, and J. Laskar, "A 90nm CMOS 60GHz Radio", ISSCC Dig. Tech Papers, pp. 130-131, Feb. 2008.
38. Joy Laskar, Stephane Pinel, Debasis Dawn, Saikat
Sarkar, Padmanava Sen, Bevin Perumana,
and David Yeh, "FR-4 and CMOS: Enabling Technologies
for Consumer Volume Millimeter-wave Applications", Electron Devices Meeting, 2007. IEDM 2007. IEEE International, pp. 981-984,
Dec. 2007.
39. Bevin
George Perumana, Anand Raghavan, Sudipto
Chakraborty, Chang-Ho Lee, Debasis Dawn,
Stephane Pinel, and Joy Laskar
"A SiGe Sub-harmonic Mixer for Millimeter-Wave
Applications", 37th European
Microwave Conf. (EuMC), Munich, Germany, Oct. 2007.
40. Debasis Dawn, S. Pinel,
S. Sarkar, P. Sen, B. Perumana, D. Yeh and J. Laskar "Development of
CMOS Based Circuits for 60GHz WPAN applications", 2007 IEEE International Conference on Ultra-WideBand,
Singapore, pp. 129-133, Sept. 2007.
41. Javier
Alvarado Jr., Kevin T. Kornegay, Debasis Dawn, Stephane Pinel, and Joy Laskar "60GHz LNA using a Hybrid Transmission Line and
Conductive Path to Ground Technique in Silicon", 2007 IEEE RFIC Symp., Honolulu, Hawaii, Jun.
2007.
42. Debasis Dawn, Yoji Ohashi, and Satoshi
Nakamura, "A Novel Planar Transition from Microstrip to Waveguide", Asia Pacific Microwave Conference (APMC) Kyoto,
Japan, Nov. 2002.
43. Debasis Dawn, Yoji Ohashi, and
Toshihiro Shimura, "Parallel Plate Mode Suppression in Shielded Structures by
Using Electromagnetic Band Gap Metal Plate", Asia Pacific Microwave Conference (APMC), Sydney, Australia, pp.
400-403, Dec. 2000.
44. Debasis Dawn, Yoji Ohashi, and
Toshihiro Shimura, "Probe Pad Structures for Multi Module Scheme at 76 GHz
Band", 30th European Microwave
Conf. (EuMC), Paris, France, pp. 361-364, Oct.
2000.
45. T. Taniuchi, N. Mashio, Y. Konno, T.
Sato, D. Dawn, and T. Yoneyama, "60 GHz Radiation Detection Using Electro-Optic
Effect of DAST Crystal", International
Topical Meeting on MICROWAVE PHOTONICS ATRI, Kyoto, Japan, pp. 317-320, Dec.
1996.
46. Tsukasa
Yoneyama, Debasis
Dawn, and Tatsuya Hanasaka, "Optical Intensity
Modulator Using Inverted Slot Line at 60 GHz", International Topical Meeting on MICROWAVE PHOTONICS, ATRI, Kyoto,
Japan, pp. 305-308, Dec. 1996.
47. Tsukasa
Yoneyama and Debasis
Dawn, "Optical Modulator Using Inverted Slot Line at 60 GHz", Proc. (DC Microwave / Optical Interactions)
of U.R.S.I. General Assembly at Lille, France, Sept. 1996.
48. Debasis Dawn and Tsukasa Yoneyama, "Optical Intensity Modulator Using Inverted Slot
Line at 60 GHz", Proceedings of 1996
China-Japan Joint Meeting on Microwaves, Hefei, P. R. China, pp. 48-51, Apr.
1996.
49. Debasis Dawn and Tsukasa Yoneyama, "A Periodic Metal Plate Loaded Dielectric Slab
Antenna", 4th International
Symposium on Recent Advances in Microwave Technology (ISRAMT '93), New
Delhi /Agra, India, Dec. 1993.
50. Debasis Dawn and M. Sachidananda,
"Analysis and Design of Strip Line to NRD Guide Transition", The 3rd Asia-Pacific Microwave
Conference (APMC '90), pp. 15-18, Tokyo, Japan, Sept. 1990.
Invited Talks
1. Debasis Dawn "Siliconization of Radio Frequency Integrated Circuits (RFIC): The possibilities are infinite...", 2020 IEEE Radio and Wireless Week (RWW), San Antonio, TX, Jan. 2020.
2. Debasis Dawn "Millimeter-Wave CMOS Radio Frequency Integrated Circuits Development
and its Potential Applications", Asia
Pacific Microwave Conference (APMC), Sendai, Japan, Nov. 2014.
3. Debasis Dawn "Silicon Microelectronic Circuits: Radio
Frequency and Beyond", UGC
Sponsored Refresher Course " Nano devices and
low-power VLSI Design", Jadavpur University, India, Dec. 2013.
4. Debasis Dawn "CMOS Integrated Beam Former with Conformal
Phased Array Antenna for Wireless Communications", NASA Jet Propulsion Laboratory (JPL), Pasadena, CA, USA, Jun. 2013.
5. Debasis Dawn "Millimeter-Wave CMOS Integrated Circuits Development and its Potential
Applications", National Institute
of Information and Communications Technology (NICT), Tokyo, Japan, May
2012.
6. Debasis Dawn "Layout and Temperature
Dependent CMOS Device Models and their Application for Millimeter-Wave Transmitter
Design", Agilent Goldengate Users
Networking Event during IEEE RFIC Symposium, Anaheim, CA, May 2010.
7. Debasis Dawn "Development of 60GHz
Radio in CMOS", IEEJ Research Committee
on Millimeter-Wave Engineering and Science, The Institute of Electrical
Engineering of Japan, Hyogo, Japan, June 2009.
8. Debasis Dawn, S. Pinel,
S. Sarkar, P. Sen, B. Perumana, D. Yeh and J. Laskar "Development of
CMOS Based Circuits for 60GHz WPAN applications", 2007 IEEE International Conference on Ultra-WideBand,
Singapore, pp. 129-133, Sept.
2007.
Book Chapter
1. Debasis Dawn "RF and mm-Wave Power Generation in Silicon, Chapter 10: 60GHz All-Silicon Radio IC: How It All Started", Elsevier, ISBN: 978-0-12-408052-2, Dec. 2015.
Patents
1. Debasis Dawn, and
Babak Hamidi, "Bit Optimized Reconfigurable Network (BORN) for Band-Switchable Active Circuits", United
States of America Provisional Patent Number: 63/170,767 April 5, 2021.
2. Debasis Dawn, Yoji Ohashi, and
Toshihiro Shimura, "Millimeter Wave Module having Probe Pad Structure and
Millimeter Wave System using Plurality of Millimeter Wave Modules", United
States of America Patent Number: US 6,867,661 B2 March 15, 2005.
3. Debasis Dawn, Yoji Ohashi and Edmar Camargo, "Transmission Line to Waveguide Transition Including
Antenna Patch and Ground Ring", United States of America Patent Number: US 6,822,528
B2 Nov. 23, 2004.
4. Debasis Dawn, Yoji Ohashi, and
Toshihiro Shimura, "Metal Plate with Three Dimensional
Photonic Band Gap Structures for Parallel Plate Mode Suppressor", submitted to
Japanese patent office for international patents, No. 99-51703.