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:
Jul. 15, 2014
Filed:
Aug. 15, 2012
Moon Suk Jeon, Seoul, KR;
Jung Rin Woo, Seoul, KR;
Sang Hwa Jung, Ansan, KR;
Jung Hyun Kim, Uiwang, KR;
Young Kwon, Thousand Oaks, CA (US);
Moon Suk Jeon, Seoul, KR;
Jung Rin Woo, Seoul, KR;
Sang Hwa Jung, Ansan, KR;
Jung Hyun Kim, Uiwang, KR;
Young Kwon, Thousand Oaks, CA (US);
Avago Technologies General IP (Singapore) Ptd. Ltd., Singapore, SG;
Abstract
A power amplifier comprises a common source amplification stage and a first common gate amplification stage. The common source amplification stage includes a common source transistor for receiving a radio frequency (RF) input signal via a gate. The first common gate amplification stage is connected in cascode between a variable supply voltage source and the common source amplification stage, and amplifies an output of the common source amplification stage. The first common gate amplification stage includes a first common gate transistor, and a first gate bias controller configured to generate a first divided voltage based on a variable supply voltage of the variable supply voltage source, and to supply a first gate bias voltage generated by buffering the first divided voltage to a gate of the first common gate transistor.