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. 07, 2016
Filed:
Sep. 12, 2014
Applicant:
Rf Micro Devices, Inc., Greensboro, NC (US);
Inventors:
Miaofu Ding, Greensboro, NC (US);
Robert J. Baeten, Greensboro, NC (US);
Assignee:
RF Micro Devices, Inc., Greensboro, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01); H03G 3/30 (2006.01); H03F 1/30 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03G 3/30 (2013.01); H03F 1/302 (2013.01); H03F 3/195 (2013.01); H03F 3/245 (2013.01); H03G 3/3042 (2013.01); H03F 2200/447 (2013.01);
Abstract
A power amplifier (PA) system with PA gain correction is disclosed. The PA system includes a PA having a bias voltage input; and electrothermal feedback circuitry coupled to the bias voltage input. The electrothermal feedback circuitry is configured to receive thermal feedback generated by the PA and maintain a substantially constant PA gain by automatically changing a bias voltage level at the bias voltage input based upon the thermal feedback.