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:
Oct. 29, 2019
Filed:
Mar. 15, 2018
Applicant:
Skyworks Solutions, Inc., Woburn, MA (US);
Inventor:
John William Mitchell Rogers, Nepean, CA;
Assignee:
Skyworks Solutions, Inc., Woburn, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01); H03F 3/21 (2006.01); H03F 3/24 (2006.01); H03F 3/193 (2006.01); H03F 1/02 (2006.01); H03F 1/32 (2006.01);
U.S. Cl.
CPC ...
H03F 3/211 (2013.01); H03F 1/0222 (2013.01); H03F 1/22 (2013.01); H03F 1/3205 (2013.01); H03F 3/193 (2013.01); H03F 3/245 (2013.01); H03F 2200/294 (2013.01); H03F 2200/372 (2013.01);
Abstract
Apparatus and methods for oscillation suppression of cascode power amplifiers are provided herein. In certain implementations, a power amplifier system includes a cascode power amplifier including a plurality of transconductance devices that operate in combination with a plurality of cascode devices to amplify a radio frequency input signal. The power amplifier system further includes a bias circuit that biases the plurality of cascode devices with two or more bias voltages that are decoupled from one another at radio frequency to thereby inhibit the cascode power amplifier from oscillating.