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:
Feb. 02, 2016
Filed:
Dec. 10, 2013
Applicant:
Broadcom Corporation, Irvine, CA (US);
Inventor:
Ali Afsahi, San Diego, CA (US);
Assignee:
Broadcom Corporation, Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/56 (2006.01); H03F 3/21 (2006.01); H03F 1/22 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 1/565 (2013.01); H03F 1/223 (2013.01); H03F 3/195 (2013.01); H03F 3/21 (2013.01); H03F 3/245 (2013.01); H03F 3/45179 (2013.01); H03F 2203/45506 (2013.01); H03F 2203/45644 (2013.01);
Abstract
A system includes a differential circuit, multiple cross-coupled transconductance circuits. In some implementations, the differential circuit may include an inductor coil in a balun or transformer. The cross-coupled transconductance circuits may act to reduce the internal resistance of the differential circuit to increase the quality factor of the differential circuit. The cross-coupled transconductance circuit may be connected at differential points along the differential circuit and be engaged and disengaged to linearize the quality factor of the differential circuit.