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. 18, 2017
Filed:
Feb. 25, 2015
Applicant:
Broadcom Corporation, Irvine, CA (US);
Inventors:
Mohyee Mikhemar, Aliso Viejo, CA (US);
Hooman Darabi, Laguna Niguel, CA (US);
Assignee:
AVAGO TECHNOLOGIES GENERAL IP (SINGAPORE) PTE. LTD., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 15/00 (2006.01); H04B 1/48 (2006.01); H04B 1/525 (2015.01); H04B 1/12 (2006.01); H04L 5/14 (2006.01);
U.S. Cl.
CPC ...
H04B 15/00 (2013.01); H04B 1/123 (2013.01); H04B 1/48 (2013.01); H04B 1/525 (2013.01); H04L 5/14 (2013.01);
Abstract
A circuit for a low-loss duplexer with noise cancellation in a receive (RX) path of a transceiver includes a duplexer, a balancing network, and a noise cancellation circuit. The duplexer circuit is coupled to an antenna of the transceiver. The balancing network is coupled to the duplexer and provides an impedance matching an impedance associated with the antenna. The noise cancellation circuit senses a noise signal generated by the balancing network and uses the sensed noise signal to improve a signal-to-noise ratio (SNR) of the RX path.