Communications: directive radio wave systems and devices (e.g. – Radar ew – Ecm
Reexamination Certificate
2006-11-21
2006-11-21
Gregory, Bernarr E. (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Radar ew
Ecm
C342S013000, C342S175000, C342S195000, C455S001000, C089S001110
Reexamination Certificate
active
07138936
ABSTRACT:
The test results found that the EMI impact depended on the UWB power that fell within the receiver passband. Specifically, EMI occurred when the average power in the receiver passband was approximately equal to the desired signal level of the receiver. One waveform, TW7, did not cause EMI because the average power was too low. Three waveforms, TW1, TW2, and TW6 only caused EMI when the receiver was tuned to the frequency of the UWB spectral component. Three waveforms, TW3, TW4, and TW5, caused EMI at all receiver frequencies. As noted, these tests were performed to determine the susceptibility of various RF receiver (radars and communications systems) devices to UWB signals. The tests were not intended to evaluate the use of UWB signals for jamming purposes.
REFERENCES:
patent: 3728632 (1973-04-01), Ross
patent: 4121214 (1978-10-01), Marinaccio et al.
patent: 5361070 (1994-11-01), McEwan
patent: 6112052 (2000-08-01), Guthrie et al.
patent: 6195529 (2001-02-01), Linz et al.
patent: 6222458 (2001-04-01), Harris
patent: 6393254 (2002-05-01), Pousada Carballo et al.
patent: 6456822 (2002-09-01), Gofman et al.
patent: 6490455 (2002-12-01), Park et al.
patent: 6496703 (2002-12-01), da Silva
patent: 6687506 (2004-02-01), Girod
patent: 6870889 (2005-03-01), Sugiura
patent: 2002/0086635 (2002-07-01), Tomono
Defense Advanced Research Projects Agency (DARPA)—Advanced Technology Office. “NETEX: Networking in Extreme Environments”; NETEX website: www.darpa.mil/ato/programs/NETEX/DT.htm.
Defense Advanced Research Projects Agency (DARPA)—Advanced Technology Office. Slideshow, “What is UWB?”; NETEX website: www.darpa.mil/ato/programs/NETEX/DT.htm.
Consumer Microcircuits Limited. “Continuous Tone Controlled Squelch System ‘Type 2’: A Manufacturers' Guide to Features and Implementation. ” May 1, 1999 (Essex, England).
Robert J. Fontana, Edward A. Richley, Lance C. Beard, JoAnn Barney. “A Programmable Ultra Wideband Signal Generator for Electromagnetic Susceptibility Testing.” 2003 IEEE Conference on Ultra Wideband Systems and Technologies, Nov. 2003 (Reston, VA).
Crapps Darrel
Duff William G.
Harwood, II Theodore L.
Light Art
Smith John P.
Gregory Bernarr E.
Roberts Mardula & Wertheim LLC
Sentel Corporation
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