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:
Oct. 09, 2018

Filed:

Dec. 06, 2016
Applicant:

Skyworks Solutions, Inc., Woburn, MA (US);

Inventors:

Oleksandr Gorbachov, Irvine, CA (US);

Lisette L. Zhang, Irvine, CA (US);

Lothar Musiol, Irvine, CA (US);

Assignee:

Skyworks Soultions, Inc., Woburn, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/18 (2006.01); H04B 1/04 (2006.01); H04B 15/00 (2006.01); H03F 3/24 (2006.01); H04B 1/10 (2006.01);
U.S. Cl.
CPC ...
H04B 1/04 (2013.01); H03F 3/24 (2013.01); H04B 1/1036 (2013.01); H04B 15/00 (2013.01); H04B 2001/0408 (2013.01);
Abstract

A radio frequency front end circuit includes an output signal transmission line, an amplifier circuit with an input connected to a radio frequency signal source and an output connected to the output signal transmission line. A harmonic suppression circuit is connected to the amplifier circuit, and includes an active circuit element having a frequency-dependent impedance and is tuned as a reflective trap with a negative capacitance for one or more rejection frequency ranges each corresponding to a multiple of a fundamental frequency of a signal generated by the radio frequency signal source.


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