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:
Dec. 19, 2017

Filed:

Feb. 27, 2017
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventor:

Tong Wang, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/02 (2006.01); H03F 1/02 (2006.01); H03F 3/21 (2006.01); H03F 1/56 (2006.01); H03F 3/193 (2006.01); H04B 1/04 (2006.01); H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0205 (2013.01); H03F 1/56 (2013.01); H03F 3/193 (2013.01); H03F 3/211 (2013.01); H04B 1/0458 (2013.01); H04B 1/18 (2013.01); H03F 2200/351 (2013.01); H03F 2200/462 (2013.01); H03F 2203/21127 (2013.01); H03F 2203/21139 (2013.01); H03F 2203/21142 (2013.01); H03F 2203/21157 (2013.01); H04B 2001/0408 (2013.01);
Abstract

A wireless communication device includes a signal generator supply a signal to an input node to which a power amplifier is connected. The power amplifier includes an inverter including a first transistor with a gate connected to the input node via a first signal path and a second transistor with a gate electrode connected to the input node via a second signal path. An output signal corresponding to the signal supplied to the input node is supplied from an output node between the first and second transistors. A filter is connected to the output node and outputs a filtered signal having a high frequency component removed. A bias application unit applies a first bias voltage to the first signal path and a second bias voltage to the second signal path. Levels of the bias voltages being set according to a direct current component in the filtered signal.


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