Title:
HIGH FREQUENCY CIRCUIT AND COMMUNICATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/008255
Kind Code:
A1
Abstract:
A high frequency circuit (1) comprises: power amplifiers (11 and 12); a transformer (14); a filter (62) having band A as a pass-band; a filter (63) having band B as a pass-band; a filter (64) having band C as a pass-band; matching circuits (20 and 30) connected to one end of an output-side coil (142); and matching circuits (40 and 50) connected to another end of the output-side coil (142). The matching circuit (20) includes a capacitor (23) disposed in a first path, a switch (22) connected to the first path and ground, and a switch (21) and an inductor (24) that are connected in series. The matching circuit (30) includes a capacitor (33) disposed in a second path, and a switch (31) and an inductor (34) that are connected in series. The matching circuit (40) includes a switch (42) connected to a third path and ground.
Inventors:
TAHARA KENJI (JP)
SHOUNAI HIROKI (JP)
YAMAMOTO KAE (JP)
WAKABAYASHI RYO (JP)
SHOUNAI HIROKI (JP)
YAMAMOTO KAE (JP)
WAKABAYASHI RYO (JP)
Application Number:
PCT/JP2022/028054
Publication Date:
February 02, 2023
Filing Date:
July 19, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03F3/24; H03F1/02; H04B1/00; H04B1/04
Foreign References:
| JP2021061577A | 2021-04-15 | |||
| JPH05299995A | 1993-11-12 | |||
| JP2013085179A | 2013-05-09 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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