The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 21, 2006

Filed:

Mar. 18, 2005
Applicants:

William G. Duff, Fairfax Station, VA (US);

Theodore L. Harwood, Ii, Hollywood, MD (US);

Art Light, Oakton, VA (US);

John P. Smith, Millersville, MD (US);

Darrel Crapps, Mitchellville, MD (US);

Inventors:

William G. Duff, Fairfax Station, VA (US);

Theodore L. Harwood, II, Hollywood, MD (US);

Art Light, Oakton, VA (US);

John P. Smith, Millersville, MD (US);

Darrel Crapps, Mitchellville, MD (US);

Assignee:

Sentel Corporation, Alexandria, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04K 3/00 (2006.01); G01S 7/00 (2006.01);
U.S. Cl.
CPC ...
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.


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