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.

Date of Patent:
Jun. 30, 2020

Filed:

Jun. 05, 2019
Applicant:

The Regents of the University of California, Oakland, CA (US);

Inventors:

Jinbo Li, Davis, CA (US);

Qun Gu, Davis, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H04B 1/26 (2006.01); H04B 1/28 (2006.01); H03D 7/12 (2006.01); H04B 1/04 (2006.01); G06F 30/30 (2020.01);
U.S. Cl.
CPC ...
H03D 7/125 (2013.01); G06F 30/30 (2020.01); H03F 3/45192 (2013.01); H04B 1/0475 (2013.01); H03D 2200/0033 (2013.01); H03D 2200/0088 (2013.01); H03F 2200/129 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45116 (2013.01); H04B 2001/0433 (2013.01); H04B 2001/0491 (2013.01);
Abstract

The disclosed embodiments relate to the design of a system that implements an up-conversion mixer. This system includes a regulator-based linearized transconductance (g) stage, which converts a differential intermediate frequency (IF) voltage signal into a corresponding pair of IF currents. It also includes a pair of current mirrors, which duplicates the pair of IF currents into sources of a set of switching transistors. The set of switching transistors uses a differential local oscillator (LO) signal to gate the duplicated pair of IF currents to produce a differential radio frequency (RF) output signal. Finally, a combination of capacitors and/or inductors is coupled to common source nodes of the set of switching transistors to suppress higher order harmonics in an associated common source node voltage signal.


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