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:
Jun. 10, 2014
Filed:
Dec. 02, 2011
Daniel Ho, Palo Alto, CA (US);
Stephen Franck, Felton, CA (US);
Ying Shi, Sunnyvale, CA (US);
Baker Scott, San Jose, CA (US);
Daniel Ho, Palo Alto, CA (US);
Stephen Franck, Felton, CA (US);
Ying Shi, Sunnyvale, CA (US);
Baker Scott, San Jose, CA (US);
RF Micro Devices (Cayman Islands), Ltd., George Town, KY;
Abstract
A gate power control technique for a power amplifier (PA) provides practical improved efficiency at backed-off power levels. It can be applied to the main gate of the output stage of the PA, the cascode gate, or any combination thereof. Both voltage mode and current mode signal processing may be used. The gate power control can be implemented in both open-loop and closed-loop using AC and DC coupled drivers and output stages. It may further use one or more control ports in the radio frequency (RF) signal path.