Title:
HIGH FREQUENCY AMPLIFIER
Document Type and Number:
WIPO Patent Application WO/2020/202674
Kind Code:
A1
Abstract:
This high frequency amplifier (30) comprises: a carrier amplifier (11) for amplifying a first signal; a peak amplifier (12) for amplifying a second signal; a first matching circuit (33) connected to the output terminal of the carrier amplifier (11); a second matching circuit (36) connected to the output terminal of the peak amplifier (12); and a first transmission line (40) connected between the first matching circuit (33) and the second matching circuit (36) and having an electrical length of less than 1/4 wavelength of the center frequency of a predetermined frequency band, wherein the phase rotation by the parallel inductors (35), (38), which are grounded at one end and constitute the first matching circuit (33) and the second matching circuit (36), is opposite to the phase rotation by the first transmission line (40).
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Inventors:
MAEDA MASAHIRO
KAMITANI MASATOSHI
MATSUDA SHINGO
KAMITANI MASATOSHI
MATSUDA SHINGO
Application Number:
PCT/JP2019/050729
Publication Date:
October 08, 2020
Filing Date:
December 25, 2019
Export Citation:
Assignee:
PANASONIC SEMICONDUCTOR SOLUTIONS CO LTD (JP)
International Classes:
H03F1/02; H03F3/68; H03F1/07
Domestic Patent References:
| WO2016203512A1 | 2016-12-22 | |||
| WO2018138763A1 | 2018-08-02 |
Foreign References:
| JP2006157900A | 2006-06-15 | |||
| JP2016063291A | 2016-04-25 | |||
| JP2006311300A | 2006-11-09 | |||
| JP2013110660A | 2013-06-06 | |||
| US20180331871A1 | 2018-11-15 | |||
| JP2017501662A | 2017-01-12 |
Attorney, Agent or Firm:
NII, Hiromori et al. (JP)
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