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:
Aug. 18, 2015
Filed:
Sep. 30, 2013
Applicant:
Avago Technologies General Ip (Singapore) Pte. Ltd., Singapore, SG;
Inventors:
Moon-Suk Jeon, Seoul, KR;
Jung-Rin Woo, Seoul, KR;
Sung-Hwan Park, Seoul, KR;
Jung Hyun Kim, Uiwang, KR;
Young Kwon, Thousand Oaks, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/00 (2006.01); H03F 3/191 (2006.01);
U.S. Cl.
CPC ...
H03G 3/00 (2013.01); H03F 3/191 (2013.01);
Abstract
A power amplifier circuit for amplifying an envelope modulated Radio Frequency (RF) signal with improved linearity and efficiency includes a power amplifier, and a variable load matching circuit coupled to an output port of the power amplifier. The input impedance of the variable load matching circuit is changed such that an output power of the power amplifier is at a first output power level, or a second output power level which is higher than the first output power level.