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:
Mar. 12, 2013
Filed:
Jul. 09, 2008
Vikas Choudhary, Coquitlam, CA;
Vikas Choudhary, Coquitlam, CA;
PMC-Sierra, Inc., Sunnyvale, CA (US);
Abstract
A mixer circuit suitable for broadband RF applications is disclosed. A unique biasing scheme for a conventional Gilbert-cell type 4-quadrant multiplier is used, resulting in relatively good linearity, relatively low noise, and relatively low power consumption. Disclosed techniques provide programmability in gain for the mixer and a broadband frequency of operation. A non-linear feedback loop is wrapped around the circuit to stabilize the common-mode voltage shifts due to programming. In one embodiment, a non-linear switch as load-resistance is used to improve the linearity of the circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile