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.
Patent No.:
Date of Patent:
Jul. 14, 2020
Filed:
Feb. 27, 2017
Applicant:
Raytheon Company, Waltham, MA (US);
Inventors:
Samuel E. Parker, Lakewood, CA (US);
John P. Gianvittorio, Torrance, CA (US);
Assignee:
RAYTHEON COMPANY, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 3/00 (2006.01); H01Q 3/26 (2006.01); H01Q 3/38 (2006.01); H04B 1/525 (2015.01); H04B 1/56 (2006.01);
U.S. Cl.
CPC ...
H01Q 3/267 (2013.01); H01Q 3/38 (2013.01); H04B 1/525 (2013.01); H04B 1/56 (2013.01);
Abstract
A system for transmitting and receiving electromagnetic waves simultaneously. A portion of a signal to be transmitted through a transmitting antenna element is diverted from a transmit signal path, processed by an adjustable filter, and coupled into receive signal path. The adjustable filter is adjusted to approximate the channel that the leakage signals go through to get from the transmitter to the receiver so that the signal coupled into the receiving path through the filter partially cancels the parasitic leakage from the transmit signal path to the receive signal path.