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. 05, 2026

Filed:

Oct. 18, 2023
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Kazuhiro Iyomasa, Tokyo, JP;

Eigo Kuwata, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03F 1/56 (2006.01); H03F 3/21 (2006.01);
U.S. Cl.
CPC ...
H03F 1/0288 (2013.01); H03F 1/565 (2013.01); H03F 3/211 (2013.01); H03F 2200/246 (2013.01); H03F 2200/387 (2013.01);
Abstract

A Doherty amplifier includes: a carrier amplifier to amplify a first high frequency signal having a first higher harmonic and a second higher harmonic; a peak amplifier to amplify a second high frequency signal having the first higher harmonic and the second higher harmonic; a first series resonant circuit connected between an output end of the carrier amplifier and a ground, and configured to resonate at the frequency of the first higher harmonic; a second series resonant circuit connected between an output end of the peak amplifier and the ground, and configured to resonate at the frequency of the first higher harmonic; a first parallel resonant circuit configured to resonate at the frequency of the second higher harmonic; and a second parallel resonant circuit configured to resonate at the frequency of the second higher harmonic.


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