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:
Apr. 15, 2014

Filed:

Apr. 25, 2012
Applicants:

Tomohide Kamiyama, Osaka, JP;

Hiroshi Naitou, Osaka, JP;

Takashi Uno, Hyogo, JP;

Motoyoshi Iwata, Osaka, JP;

Kazuhiro Yahata, Osaka, JP;

Hikaru Ikeda, Osaka, JP;

Inventors:

Tomohide Kamiyama, Osaka, JP;

Hiroshi Naitou, Osaka, JP;

Takashi Uno, Hyogo, JP;

Motoyoshi Iwata, Osaka, JP;

Kazuhiro Yahata, Osaka, JP;

Hikaru Ikeda, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/68 (2006.01);
U.S. Cl.
CPC ...
Abstract

A radio frequency amplifier circuit includes: low-output transistors, each of which includes an input terminal, an output terminal, and a ground terminal, and amplifies a radio frequency signal; a harmonic processing circuit provided for each of the low-output transistors to be connected to the output terminal of the low-output transistor, and processing a secondary harmonic included in an amplified radio frequency signal, and a resistor connected to the output terminal of each of the low-output transistors. The input terminal of each of the low-output transistors is connected to an input terminal of the radio frequency amplifier circuit via an inductor, and the output terminal of each of the low-output transistors is connected to the other output terminal via the resistance and is further connected to an output terminal of the radio frequency amplifier circuit via an inductor.


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