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:
May. 24, 2016
Filed:
Jan. 28, 2014
Applicant:
Avago Technologies General Ip (Singapore) Pte. Ltd., Singapore, SG;
Inventors:
Assignee:
Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/04 (2006.01); H03F 1/02 (2006.01); H03F 1/32 (2006.01); H03F 1/56 (2006.01); H03F 3/189 (2006.01); H03F 3/193 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0266 (2013.01); H03F 1/3247 (2013.01); H03F 1/3288 (2013.01); H03F 1/56 (2013.01); H03F 3/189 (2013.01); H03F 3/193 (2013.01); H03F 3/24 (2013.01); H03F 3/245 (2013.01); H03F 2200/102 (2013.01); H03F 2200/213 (2013.01); H03F 2200/222 (2013.01); H03F 2200/318 (2013.01); H03F 2200/387 (2013.01); H03F 2200/411 (2013.01); H03F 2200/453 (2013.01); H03F 2200/555 (2013.01); H03F 2201/3212 (2013.01);
Abstract
A linearized power amplifier includes a first amplification stage having a first transistor for amplifying an input signal and outputting a pre-amplified signal, and a second amplification stage having a second transistor for amplifying the pre-amplified signal. A phase injection circuit, connected to the gate of the first transistor and the gate of the second transistor, adjusts the phase of the input signal based on the pre-amplified signal so as to compensate for AM-AM distortion and AM-PM distortion.