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Patent Searching and Data


Title:
ACOUSTIC WAVE FILTER, DUPLEXER, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/107280
Kind Code:
A1
Abstract:
An acoustic wave filter 51 provided with: a first signal terminal 53X; an antenna terminal 53A; a ladder-type filter 55 connected between the first signal terminal 53X and the antenna terminal 53A, the ladder-type filter 55 including one or more serial resonators 65 and one or more parallel resonators 67 connected in a ladder shape; and a capacitor unit 85 and an inductor unit 87 serially connected between the first signal terminal 53X and a standard potential.

Inventors:
URATA, Tomonori (6 Takeda Tobadono-cho, Fushimi-ku, Kyoto-sh, Kyoto 01, 〒6128501, JP)
Application Number:
JP2018/043230
Publication Date:
June 06, 2019
Filing Date:
November 22, 2018
Export Citation:
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Assignee:
KYOCERA CORPORATION (6 Takeda Tobadono-cho, Fushimi-ku Kyoto-sh, Kyoto 01, 〒6128501, JP)
International Classes:
H03H9/64; H03H9/25; H03H9/72
Domestic Patent References:
WO2016104598A12016-06-30
WO2011142143A12011-11-17
WO2017110993A12017-06-29
Foreign References:
JP2004289195A2004-10-14
JPH04114505A1992-04-15
US20110018653A12011-01-27
JP2000077967A2000-03-14
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