Title:
HIGH-FREQUENCY FRONT END CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/153285
Kind Code:
A1
Abstract:
The present invention suppresses deterioration of communication quality when simultaneous communication is carried out by using a plurality of frequency bands. A high-frequency front end circuit (1) is provided with: an antenna terminal (2); a transmission filter (3); a reception filter; a transfer filter; a switch (6); and a phase adjustment circuit (7). The switch (6) can be simultaneously connected to the antenna terminal (2), the transmission filter (3) or the reception filter, and the transfer filter. The transmission filter (3) is provided to a transmission path (T1). The reception filter is provided to a reception path. The transfer filter is provided to a transfer path. The phase adjustment circuit (7) is provided to at least one of the transmission path (T1), the reception path, and a transmission/reception path.
Inventors:
KANI HIROYUKI
SANO TOMOHIRO
SANO TOMOHIRO
Application Number:
PCT/JP2020/001664
Publication Date:
July 30, 2020
Filing Date:
January 20, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/38; H03H7/46; H04B1/00; H04B1/50
Domestic Patent References:
| WO2017006867A1 | 2017-01-12 | |||
| WO2006057173A1 | 2006-06-01 | |||
| WO2018031163A1 | 2018-02-15 |
Foreign References:
| JP2017017691A | 2017-01-19 |
Other References:
CMCC: "TR 36.847 v2.0.0 on LTE Time Division Duplex (TDD)-Frequency Division Duplex (FDD) joint operation including Carrier Aggregation, for approva", 3GPP TSG-RAN#62, RP-131778, 2013, Retrieved from the Internet
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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