Title:
HIGH FREQUENCY CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/157702
Kind Code:
A1
Abstract:
This high frequency circuit (1) comprises: an input terminal (110); an antenna connection terminal (100); a carrier amplifier (21); a peak amplifier (22); preamplifiers (11 and 23); a transformer (30) having an input coil (301) and an output coil (302); and a phase-shifting line path (41). An input terminal of the preamplifier (11) is connected to the input terminal (110). An output terminal of the preamplifier (11) is connected to an input terminal of the carrier amplifier (21) and an input terminal of the preamplifier (23). An output terminal of the preamplifier (23) is connected to an input terminal of the peak amplifier (22). An output terminal of the carrier amplifier (21) is connected to one end of the input coil (301). An output terminal of the peak amplifier (22) is connected to one end of the phase-shifting line path (41). The other end of the phase-shifting line path (41) is connected to the other end of the input coil (301). One end of the output coil (302) is connected to the antenna connection terminal (100).
Inventors:
TAHARA KENJI (JP)
YAMAMOTO KAE (JP)
YAMAMOTO KAE (JP)
Application Number:
PCT/JP2023/003858
Publication Date:
August 24, 2023
Filing Date:
February 06, 2023
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03F3/19; H03F1/02; H03F3/24; H03F3/68
Foreign References:
| JP2007124460A | 2007-05-17 | |||
| JP2006197556A | 2006-07-27 | |||
| CN108768308A | 2018-11-06 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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