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:
Dec. 01, 2020
Filed:
Sep. 21, 2017
Applicant:
Qorvo Us, Inc., Greensboro, NC (US);
Inventor:
Sam Mandegaran, Pasadena, CA (US);
Assignee:
Qorvo US, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H01P 5/12 (2006.01); H04W 24/00 (2009.01); H03H 7/46 (2006.01); H04L 5/14 (2006.01); H01P 5/18 (2006.01); H03H 9/70 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
H03H 7/465 (2013.01); H01P 5/18 (2013.01); H03H 9/706 (2013.01); H03H 9/725 (2013.01); H04L 5/14 (2013.01);
Abstract
A radio frequency (RF) duplexer may comprise quadrature hybrid couplers and RF filters. The isolation and insertion loss of such RF duplexer, often limited by practical imperfections such as component mismatches and layout asymmetries, may be improved by including capacitors in the RF duplexer. A tunable or reconfigurable RF duplexer with high isolation and low insertion loss, under all desired settings, may be realized by adding tunable capacitors to the tunable RF duplexer which includes the quadrature hybrid couplers and tunable RF filters.