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.:

US 9634645 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 25, 2017

Filed:

Mar. 14, 2013
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Je-Hsiung Lan, San Diego, CA (US);

Chi Shun Lo, San Diego, CA (US);

Jonghae Kim, San Diego, CA (US);

Mario Francisco Velez, San Diego, CA (US);

John H. Hong, San Clemente, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 11/28 (2006.01); H01L 23/522 (2006.01); H01L 27/13 (2006.01); H01L 49/02 (2006.01); H01L 23/64 (2006.01); H01L 27/12 (2006.01); H01L 23/66 (2006.01); H01F 19/08 (2006.01); H01F 27/28 (2006.01);
U.S. Cl.
CPC ...
H03H 11/28 (2013.01); H01L 23/5227 (2013.01); H01L 27/13 (2013.01); H01L 28/10 (2013.01); H01F 2019/085 (2013.01); H01F 2027/2809 (2013.01); H01L 23/645 (2013.01); H01L 23/66 (2013.01); H01L 27/1225 (2013.01); H01L 2223/6655 (2013.01); H01L 2223/6677 (2013.01); H01L 2924/0002 (2013.01); H01L 2924/30111 (2013.01);
Abstract

A particular device includes a replica circuit disposed above a dielectric substrate. The replica circuit includes a thin film transistor (TFT) configured to function as a variable capacitor or a variable resistor. The device further includes a transformer disposed above the dielectric substrate and coupled to the replica circuit. The transformer is configured facilitate an impedance match between the replica circuit and an antenna.


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