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Title:
DOHERTY AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2022/249380
Kind Code:
A1
Abstract:
This Doherty amplifier (100) is configured so as to comprise a carrier amplifier (4) that amplifies a first high-frequency signal having respectively a first higher harmonic wave and a second higher harmonic wave, a peak amplifier (7) that amplifies a second high-frequency signal having respectively a first higher harmonic wave and a second higher harmonic wave, a first series resonant circuit (9) that is connected between an output terminal (4a) of the carrier amplifier (4) and a ground and resonates at the frequency of the first higher harmonic wave, a second series resonant circuit (10) that is connected between an output terminal (7a) of the peak amplifier (7) and a ground and resonates at the frequency of the first higher harmonic wave, a first parallel resonant circuit (11) that is connected at one end to the output terminal (4a) of the carrier amplifier (4) and is connected at the other end to the output terminal (7a) of the peak amplifier (7) and resonates at the frequency of the second higher harmonic wave, and a second parallel resonant circuit (13) that is connected at one end to both the output terminal (7a) of the peak amplifier (7) and the other end of the first parallel resonant circuit (11), is electrically connected at the other end to a load (17), and resonates at the frequency of the second higher harmonic wave.

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Inventors:
IYOMASA KAZUHIRO (JP)
KUWATA EIGO (JP)
Application Number:
PCT/JP2021/020147
Publication Date:
December 01, 2022
Filing Date:
May 27, 2021
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H03F1/02; H03F3/68
Domestic Patent References:
WO2017145258A12017-08-31
WO2020235093A12020-11-26
Foreign References:
JP2018074320A2018-05-10
Attorney, Agent or Firm:
SANNO PATENT ATTORNEYS OFFICE (JP)
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