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. 06, 2023

Filed:

Sep. 25, 2019
Applicant:

Skyworks Solutions, Inc., Irvine, CA (US);

Inventors:

Netsanet Gebeyehu, San Jose, CA (US);

Tianzuo Xi, Milpitas, CA (US);

Sukchan Kang, San Jose, CA (US);

Nan Ni, Milpitas, CA (US);

Assignee:

SKYWORKS SOLUTIONS, INC., Irvine, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 1/56 (2006.01); H03F 3/26 (2006.01); H04B 1/401 (2015.01);
U.S. Cl.
CPC ...
H03F 1/56 (2013.01); H03F 3/26 (2013.01); H04B 1/401 (2013.01); H03F 2200/387 (2013.01); H03F 2200/451 (2013.01); H03F 2200/48 (2013.01); H03F 2200/534 (2013.01); H03F 2200/537 (2013.01); H03F 2200/541 (2013.01);
Abstract

An amplifier system including a push-pull power amplifier having an input to receive a radio frequency (RF) input signal and an output, the push-pull power amplifier being configured to amplify the RF input signal and provide at the output an RF output signal that is an amplified version of the RF input signal, a switchable shunt capacitance switchably connected between a load-line connected to the output of the push-pull power amplifier and a reference potential, and a switch configured to selectively connect the switchable shunt capacitance to the reference potential and disconnect the switchable shunt capacitance from the reference potential to vary an impedance of load-line.


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