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:
Mar. 03, 2020
Filed:
Jun. 22, 2018
Applicant:
Skyworks Solutions, Inc., Woburn, MA (US);
Inventors:
Yong Hee Lee, Tustin, CA (US);
William J. Domino, Yorba Linda, CA (US);
Assignee:
Skyworks Solutions, Inc., Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/34 (2006.01); H03F 1/26 (2006.01); H03F 3/19 (2006.01); H03F 3/24 (2006.01); H03G 3/30 (2006.01); H01P 5/18 (2006.01); H04W 88/02 (2009.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); H01P 5/18 (2013.01); H03F 3/19 (2013.01); H03F 3/245 (2013.01); H03G 3/3042 (2013.01); H03F 2200/129 (2013.01); H03F 2200/171 (2013.01); H03F 2200/372 (2013.01); H03F 2200/451 (2013.01); H03G 2201/103 (2013.01); H03G 2201/307 (2013.01); H04W 88/02 (2013.01);
Abstract
A power amplifier system can be configured to provide amplification to a radio frequency signal associated with a first frequency band and to output an amplified radio frequency signal. The system can include a bandpass filter arranged in a feedback loop with respect to the power amplifier and configured to pass through a portion of the amplified radio frequency signal corresponding to a second frequency band. A first shifter can be positioned in the feedback loop, and an output of the feedback loop can provide negative feedback to an input of the power amplifier.