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List of Publications and Patents: R. S. Tahim

1.

R .S.Tahim, G.M. Hayashibara and K. Chang," Design and Performance of W-band Integrated Circuit Mixers," IEEE Trans. on Microwave Theory and Tech., Vol. MTT-29, March 1983, pp. 277- 283.
2.
K.Chang, K. Louie, A.J. Grote, R. S. Tahim, M .J. Milnar, G.M. Hayashiabara and C. Sun, "V-band low-noise integrated circuit receiver," IEEE Trans. on Microwave Theory and Tech.,Vol. MTT- 31, Feb.1983.
3.
R.S.Tahim, G.M.Hayashiabara and K.Chang, "High efficiency Q to W-band MIC Frequency-doublers, "Electronic Letters, Vol. 19, March 1983
4.
R.S.Tahim, G.M.Hayashiabara and K.Chang, "Design and Performance of W-band broadband Integrated Circuit Mixers,” Microwave and Millimeter-wave Mixers, "Edited by E.L. Kolleberg, IEEE Press, 1984, pp. 205-211.
5.
R.S.Tahim, T.Pham and K.Chang, "Millimeter-wave Integrated circuit Wide-band Down- converters,” Microwave Journal, Vol.28, July, 1985.
6.
R.S.Tahim, T.Pham and K.Chang, "Millimeter-wave micro-strip Sub-harmonically Pumped Mixer, "Electronic Letters, Vol.21 Sep.1985.
7.
K.Chang, D.M.English, R.S.Tahim, A.J.Grote, T .Pham, C .Sun, G .M. Hayashiabara, P.Yen and W.Piotrowski," W-band (75-110 GHz) Microstrip Components, "IEEE Trans. on Microwave Theory and Tech.,Vol. .MTT-31, Dec. 1985, pp.1375-1382.
8.
R.S.Tahim, T.Pham and K. Chang, "High performance Millimeter-wave Suspended Stripline Gunn VCO, "Electronics Letters, Vol.22, Sep. 1986
9.
R.S.Tahim, T.Pham and K.Chang, "W-band Integrated PIN switches," Microwave Journal, Vol.29, Dec.1986
10.
R.S. Tahim, A. Grote and K. Chang," Miniature MM-wave LO/Mixer Modules based on Suspended Strip-line and Micro-strip," Microwave System news, Vol.16, Nov.1986.
11.
R.S. Tahim, K. Chang and K.A. Hummer," Wideband Micro-strip balanced mixer, "Electronics Letters, Vol. 23, July 1987.
12.
R.S. Tahim and K. Chang, "A high efficiency Q to W-band all Microstrip Millimeter- Wave Doubler," International Journal of Infrared and Millimeter-waves, Vol.9, Oct. 1988.
13.
R. S. Tahim, T .Pham and K. Chang," W-band low noise Integrated circuit Crossbar and Fin-line Mixers with over 20 GHz instantaneous RF bandwidth," 1983 IEEE-MTT Microwave Symposium, May 1983.
14.
K. Chang, D.M. English, R.S. Tahim, A.J. Grote, T. Pham, C. Sun, G.M. Hayashiabara, P. Yen and W. Piotrowski," W-band broadband integrated circuit Receiver,"1984 IEEE-MTT Microwave Symposium, May 1984.
15.
A.Grote, R.S. Tahim and K. Chang, "Miniature Millimeter-wave Integrated circuit Wide-band down-converter,” 1985 IEEE Microwave Symposium, June 1985.
16.
R. S. Tahim and K. Chang," Development of High Efficiency W-band Integrated Circuit Doublers, "12th International Conference on Infrared and Millimeter-waves, Dec. 1987.
17.
R.S. Tahim, B. Dutt, "Low-noise Millimeter-wave Integrated Circuit Mixers, "Journal of IETE, Vol.41, No.1, Jan.-Feb., 1995.
18.
R.S. Tahim and B. Dutt, ”Millimeter-wave Integrated Circuit power Sources, ”Journal of IETE, vol.41, No.1, Jan.-Feb. 1995, pp. 45-51.
19.
R.S. Tahim: Final NASA research report on "Microwave Power Transfer System based on Integrated Circuit Technology” June 1995.
20.
R.S. Tahim and K. Chang: Final Army Research Laboratory report on "High Frequency Solid-state Devices” Oct.1996.
21.
R.S Tahim and K. Chang: Final DARPA research report on "Alternate Power Sources for Aerostats” Nov. 1996.
22.
R.S.Tahim, ”Millimeter-wave Image Enhanced Mixer, "4th International Symposium on Recent Advances in Microwave Technology, 1993, New Delhi, India.
23.
J. Foshee, R.S. Tahim, K. Chang,” Pseudo Full-duplex phased array antennas” Aero Sense (Spie-conference) 2002 proceedings, paper number 4720-
24.
"Small Size, Multi-frequency, Multi-beam Phased Array Antenna Systems" USAF Contract: F33615 - 99 C -1406, Final Research Report, June 2002.
25.
R. S. Tahim, K. Chang, J. Foshee," Networking Multi-band Phased Array Antennas” MILCOM- 2001, Tyson Corner Vienna, VA.
26.
J.Foshee, R.S.Tahim and K. Chang,” Multi-band phased array antennas for wireless communications” SPIE Proceedings-2001.
27.
R.S.Tahim, K.Chang, "Low cost multi-frequency phased array antenna for wide-band communication” MILCOM-99, Atlantic City, NJ.
28.
R.S.Tahim, J.Foshee and K. Chang,” Integrated Multi-frequency Phased Array Antenna” 2001 IEEE AP-S, International Symposium, Vol. 2, pp. 432-435.
29.
J. Foshee, R.S. Tahim, K. Chang,” High capacity phased array antennas for theater recce/intel Networks” IEEE Aerospace Conference Proceedings, Big Sky, Montanna, March 2002
30.
R. S. Tahim, J. Foshee and K. Chang,” Design of phased array antenna systems for Multi-point Communications” 2003 IEEE Aerospace Conference, Big Sky, Montana, Paper # 3001-06.
31.
R. S. Tahim, J. Foshee and K. Chang,” Networking of Multi-band Phased Array Antennas for Mobile Communications” IEEE Antenna Propagation Society (APS) conference-2003.
32.
R. S. Tahim, J. Foshee and K. Chang,” Multi-band Antenna Technology” IEEE Antenna Propagation Society (APS) conference-2004.
33.
T.Y. Yun, K. Chang and R.S. Tahim,” Tunable Microwave circuits and Devices Controlled by Piezoelectric Transducers,” U.S. Patent Pending.
34.
R.S.Tahim, J.Foshee and K.Chang, ”Multi-band Phased Array Radar for Homeland Security” 2004 Homeland and Defense symposium Orlando, Fl.
35.
R.S. Tahim, J. Foshee and K. Chang,”Design Considerations for a Combined RF/Optical shared Aperture” 2005 Homeland and Defense symposium Orlando, Fl.
36.
R.S.Tahim, J.Foshee and K.Chang, ”Phased Array Radar Systems for Defense and Homeland Security” Midwest IEEE conference, 2005, Dayton OH.

37.
R.S.Tahim, ”Microwave Mixers” Encyclopedia of RF and Microwave Engineering, John Wiley Publication 2005, Vol.-3, pp. 2812 – 2818.
 
  PATENTS
 
  1. Tunable Microwave circuits and Devices Controlled by Piezoelectric Transducers,” U.S. Patent 6,987,488.

    2. Co-authored and awarded to RS Tahim while working with TRW (now Northrop Grumman, Corp.)

  2. Suspended Strip line Varactor Tuned Gunn Oscillator, U. S.
    Patent 4,521,747.

  3. Local Oscillator and Mixer Assembly, U.S. Patent 4,641,369.

    4. Co-authored and awarded to RS Tahim while working Hughes Aircraft Company (now Boeing)

  4. Image Recovery Mixer, U.S. Patent 5,265,268

  5. Electronic Tracking Antenna Feed, U.S. Patent 5,617,108.



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