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.

Date of Patent:
May. 22, 2018

Filed:

Jan. 12, 2016
Applicants:

Samsung Electro-mechanics Co., Ltd., Suwon-si, KR;

Korea Advanced Institute of Science and Technology, Daejeon, KR;

Inventors:

Seung Hoon Kang, Daejeon, KR;

Gyu Suck Kim, Suwon-si, KR;

Song Cheol Hong, Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03G 3/20 (2006.01); H03F 3/21 (2006.01); H03F 1/56 (2006.01); H03F 3/193 (2006.01); H03F 1/22 (2006.01); H03F 1/32 (2006.01); H03F 3/45 (2006.01); H03F 1/02 (2006.01); H03F 1/30 (2006.01);
U.S. Cl.
CPC ...
H03F 3/21 (2013.01); H03F 1/0266 (2013.01); H03F 1/223 (2013.01); H03F 1/3211 (2013.01); H03F 1/56 (2013.01); H03F 3/193 (2013.01); H03F 3/45188 (2013.01); H03F 1/0222 (2013.01); H03F 1/0261 (2013.01); H03F 1/302 (2013.01); H03F 2200/102 (2013.01); H03F 2200/451 (2013.01); H03F 2200/555 (2013.01);
Abstract

A power amplifier include an amplifier including at least one field effect transistor (FET) that operates in an amplifying stage configured to amplify an input signal, and a body controller configured to control a bias voltage of a body terminal of the FET based on a power of the input signal. The body controller performs controlling so that the bias voltage of the body terminal is reduced in response to the power of the input signal being increased. Accordingly, such a power amplifier exhibits improved linearity.


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