Title:
HIGH FREQUENCY CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/209665
Kind Code:
A1
Abstract:
A high frequency circuit (1) comprises a switch (60) having a common terminal (60a), a selection terminal (60b) connected to a filter (11), a selection terminal (60c) connected to a filter (12), a selection terminal (60d) connected to a filter (20), and a selection terminal (60e) connected to a matching circuit (50). When a transmission/reception signal in a first band is transmitted, the common terminal (60a) is connected to the selection terminals (60b and 60c), and the common terminal (60a) is not connected to the selection terminals (60d and 60e). When a transmission/reception signal in the first band and a signal in a second band are transmitted simultaneously, the common terminal (60a) is connected to the selection terminal (60b), the selection terminal (60c), the selection terminal (60d), and the selection terminal (60e). When a signal in a third band is transmitted, the common terminal (60a) is connected to the selection terminals (60b and 60e), and the common terminal (60a) is not connected to the selection terminals (60c and 60d).
Inventors:
ONO ATSUSHI (JP)
MORI HIROTSUGU (JP)
MORI HIROTSUGU (JP)
Application Number:
PCT/JP2022/010314
Publication Date:
October 06, 2022
Filing Date:
March 09, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04B1/38; H03H7/38; H03H7/46; H04B1/00
Domestic Patent References:
| WO2020153285A1 | 2020-07-30 | |||
| WO2018061782A1 | 2018-04-05 | |||
| WO2017073509A1 | 2017-05-04 |
Foreign References:
| JP2015023557A | 2015-02-02 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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