Title:
MULTIPLEXER, HIGH-FREQUENCY MODULE, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/183985
Kind Code:
A1
Abstract:
The present invention improves attenuation of the pass band of a second filter at the reception path side when a first filter for passing a reception signal is an acoustic wave filter. A multiplexer (1) comprises: a common terminal (10); a first terminal (11); a second terminal (12); a first filter (21); and a second filter (22). The first filter (21) is an acoustic wave filter provided in a reception path (R1) between the common terminal (10) and the first terminal (11), and passes a reception signal. The second filter (22) is provided in a transmission path (Tx1) between the common terminal (10) and the second terminal (12), and passes a transmission signal. The multiplexer (1) further comprises an LC filter (23). The LC filter (23) is provided in the reception path (R1) between the common terminal (10) and the first terminal (11).
Inventors:
NAGAMORI HIROYUKI
Application Number:
PCT/JP2020/004157
Publication Date:
September 17, 2020
Filing Date:
February 04, 2020
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H04B1/00; H04B1/50
Domestic Patent References:
| WO2018092511A1 | 2018-05-24 | |||
| WO2018062321A1 | 2018-04-05 | |||
| WO2017043155A1 | 2017-03-16 |
Foreign References:
| KR20180121075A | 2018-11-07 | |||
| JP2020014206A | 2020-01-23 |
Other References:
ERICSSON, 3GPP SPECTRUM BANDS, 31 July 2019 (2019-07-31)
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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