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. 04, 2009
Filed:
Jun. 29, 2007
Rahul Magoon, Irvine, CA (US);
Morten Damgaard, Laguna Hills, CA (US);
Roberto Aparicio Joo, Newport Beach, CA (US);
Scott D. Kee, Dana Point, CA (US);
Ichiro Aoki, San Clemente, CA (US);
Rahul Magoon, Irvine, CA (US);
Morten Damgaard, Laguna Hills, CA (US);
Roberto Aparicio Joo, Newport Beach, CA (US);
Scott D. Kee, Dana Point, CA (US);
Ichiro Aoki, San Clemente, CA (US);
Axiom Microdevices, Inc., Irvine, CA (US);
Abstract
A system for controlling the power output of a power amplifier includes a power amplifier through which a transmit signal having an amplitude-modulated (AM) component and a phase-modulated (PM) component is passed and amplified, the power amplifier comprising a forward path, a feedback signal comprising a portion of the output of the power amplifier, a first control loop configured to receive the feedback signal and configured to apply an amplitude modulated (AM) signal to the power amplifier and configured to control the gain of the power amplifier, a second control loop configured to receive the feedback signal and configured to correct for offsets in the forward path and to linearize the first control loop; and a third control loop configured to receive the feedback signal and configured to control the phase of the PM component of the transmit signal.