Invention Grant
- Patent Title: Duplexer, filter and communication module
- Patent Title (中): 双工器，过滤器和通讯模块
-
Application No.: US13604526Application Date: 2012-09-05
-
Publication No.: US09219467B2Publication Date: 2015-12-22
- Inventor: Shogo Inoue , Masafumi Iwaki , Jun Tsutsumi
- Applicant: Shogo Inoue , Masafumi Iwaki , Jun Tsutsumi
- Applicant Address: JP Tokyo
- Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Chen Yoshimura LLP
- Priority: JP2011-242645 20111104; JP2012-158654 20120717
- Main IPC: H03H9/70
- IPC: H03H9/70 ; H03H9/72 ; H03H9/64
Abstract:
A duplexer includes: a transmit filter that is connected between an antenna terminal and a transmit terminal and has a plurality of acoustic wave resonators; a receive filter that is connected between the antenna terminal and a receive terminal and has a plurality of acoustic wave resonators; and a delay line or a longitudinal coupling type resonator that is connected in parallel with at least one of the plurality of acoustic wave resonators of the transmit filter and the plurality of acoustic wave resonators of the receive filter and has at least two IDTs (Interdigital Transducers).
Public/Granted literature
- US20130113576A1 DUPLEXER, FILTER AND COMMUNICATION MODULE Public/Granted day:2013-05-09
Information query
