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1. (WO2018221427) MULTIPLEXER, TRANSMISSION DEVICE, AND RECEPTION DEVICE

Pub. No.:    WO/2018/221427    International Application No.:    PCT/JP2018/020240
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: H03H 9/25
H03H 9/64
H03H 9/72
H04B 1/00
H04B 1/52
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: OTA, Noriyoshi
太田 憲良
YAMAZAKI, Sunao
山崎 直
Title: MULTIPLEXER, TRANSMISSION DEVICE, AND RECEPTION DEVICE
Abstract:
Provided is a multiplexer in which, from among a plurality of terminals (11b-11g, 12b-12g, 13b-13g, 14b-14g) which are of four acoustic wave filters and are disposed on piezoelectric substrates (11a, 12a, 13a, 14a), input terminals or output terminals are connected to antenna terminals connected to an antenna connection terminal (60). The four acoustic wave filters include first acoustic wave filters (Band25Tx, Band66Rx) and second acoustic wave filters (Band25Rx, Band66Tx), which are disposed at positions farther from the antenna connection terminal (60) than the first acoustic filters when a substrate (6) is viewed in planar view. The second acoustic wave filters use, as antenna terminals, the terminals (12b, 13b), from among the plurality of terminals, disposed closest to the antenna connection terminal (60) when the substrate (6) is viewed in planar view.