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:
Jan. 30, 2007
Filed:
Apr. 29, 2004
Applicant:
Hirad Samavati, Santa Clara, CA (US);
Inventor:
Hirad Samavati, Santa Clara, CA (US);
Assignee:
Atheros Communications, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
A gain controlled mixer for an integrated CMOS transceiver. Accuracy of the controlled gain may be relatively invariant over temperature, manufacturing process, and other variations attendant to circuit realizations in a CMOS transceiver, and other realizations. A plurality of substantially matched circuit elements are instantiated and disposed similarly within the gain controlled mixer, enhancing the gain accuracy of selectable gain control states. Matching gain and other functions between circuit elements is further enhanced by appropriately controlling DC operating point conditions.