Title:
HIGH-FREQUENCY CIRCUIT, COMMUNICATION DEVICE, AND POWER AMPLIFICATION METHOD FOR HIGH-FREQUENCY CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2023/017760
Kind Code:
A1
Abstract:
A high-frequency circuit (1) comprises: power amplifiers (10 and 20); a transformer (32) having an input-side coil (321) and an output-side coil (322); a bias circuit (50) connected to the power amplifiers (10 and 20); an output terminal (76) connected to one end of the output-side coil (322); an output terminal (77) connected to the other end of the output-side coil (322); a switch (41) connected between the output terminal (76) and ground; a switch (42) connected between the output terminal (77) and ground; a phase-shift line (12) having an input end connected to the output terminal of the power amplifier (10) and an output end connected to one end of the input-side coil (321); and a phase-shift line (22) having an input end connected to the output terminal of the power amplifier (20) and an output end connected to the other end of the input-side coil (321).
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Inventors:
TAHARA KENJI (JP)
TAKAHASHI HIDETAKA (JP)
YAMAMOTO KAE (JP)
TAKAHASHI HIDETAKA (JP)
YAMAMOTO KAE (JP)
Application Number:
PCT/JP2022/029743
Publication Date:
February 16, 2023
Filing Date:
August 03, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03F1/02; H03F3/24; H03F3/68
Domestic Patent References:
| WO2019054176A1 | 2019-03-21 |
Foreign References:
| JP2018137566A | 2018-08-30 | |||
| JP2014204170A | 2014-10-27 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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