DE69123620T2 - Akustischer Oberflächenwellenfilter mit mehreren Elektroden - Google Patents

Akustischer Oberflächenwellenfilter mit mehreren Elektroden

Info

Publication number
DE69123620T2
DE69123620T2 DE69123620T DE69123620T DE69123620T2 DE 69123620 T2 DE69123620 T2 DE 69123620T2 DE 69123620 T DE69123620 T DE 69123620T DE 69123620 T DE69123620 T DE 69123620T DE 69123620 T2 DE69123620 T2 DE 69123620T2
Authority
DE
Germany
Prior art keywords
wave filter
surface wave
multiple electrodes
acoustic surface
acoustic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69123620T
Other languages
English (en)
Other versions
DE69123620D1 (de
Inventor
Yoshio Satoh
Osamu Ikata
Tsutomu Miyashita
Mitsuo Takamatsu
Takashi Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Taiyo Yuden Co Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2069121A external-priority patent/JPH03270309A/ja
Priority claimed from JP2086236A external-priority patent/JP2982208B2/ja
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE69123620D1 publication Critical patent/DE69123620D1/de
Publication of DE69123620T2 publication Critical patent/DE69123620T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series transducers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6426—Combinations of the characteristics of different transducers
DE69123620T 1990-03-19 1991-03-19 Akustischer Oberflächenwellenfilter mit mehreren Elektroden Expired - Lifetime DE69123620T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2069121A JPH03270309A (ja) 1990-03-19 1990-03-19 多電極構成型弾性表面波素子
JP2086236A JP2982208B2 (ja) 1990-03-30 1990-03-30 弾性表面波素子

Publications (2)

Publication Number Publication Date
DE69123620D1 DE69123620D1 (de) 1997-01-30
DE69123620T2 true DE69123620T2 (de) 1997-04-17

Family

ID=26410306

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69123620T Expired - Lifetime DE69123620T2 (de) 1990-03-19 1991-03-19 Akustischer Oberflächenwellenfilter mit mehreren Elektroden

Country Status (5)

Country Link
US (1) US5179310A (de)
EP (1) EP0448357B1 (de)
KR (1) KR940009395B1 (de)
CA (1) CA2038474C (de)
DE (1) DE69123620T2 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05315886A (ja) * 1992-05-14 1993-11-26 Matsushita Electric Ind Co Ltd 弾性表面波フィルタ
US5666091A (en) * 1995-03-20 1997-09-09 Hitachi Media Electronics Co., Ltd. Structure of surface acoustic wave filter
JPH08265087A (ja) * 1995-03-22 1996-10-11 Mitsubishi Electric Corp 弾性表面波フィルタ
DE69636897T2 (de) * 1995-05-29 2007-10-25 Sanyo Electric Co., Ltd., Moriguchi Akustischer Oberflächenwellenfilter
JP3317274B2 (ja) * 1999-05-26 2002-08-26 株式会社村田製作所 弾性表面波装置及び弾性表面波装置の製造方法
JP2003069383A (ja) * 2001-08-29 2003-03-07 Murata Mfg Co Ltd 弾性表面波フィルタ
JP4591800B2 (ja) 2008-02-20 2010-12-01 エプソントヨコム株式会社 弾性表面波デバイスおよび弾性表面波発振器
KR20110133037A (ko) 2009-02-27 2011-12-09 세이코 엡슨 가부시키가이샤 탄성 표면파 공진자, 탄성 표면파 발진기, 및 전자 기기
JP4645923B2 (ja) 2009-02-27 2011-03-09 セイコーエプソン株式会社 弾性表面波共振子、および弾性表面波発振器
WO2010122767A1 (ja) * 2009-04-22 2010-10-28 パナソニック株式会社 弾性波素子と、これを用いた電子機器
CN102804600B (zh) * 2009-06-26 2015-09-02 京瓷株式会社 表面声波滤波器以及使用其的分波器
JP5678486B2 (ja) 2010-06-17 2015-03-04 セイコーエプソン株式会社 弾性表面波共振子、弾性表面波発振器および電子機器
JP5934464B2 (ja) 2010-08-26 2016-06-15 セイコーエプソン株式会社 弾性表面波共振子、および弾性表面波発振器、ならびに電子機器
JP2012049817A (ja) 2010-08-26 2012-03-08 Seiko Epson Corp 弾性表面波デバイス、および弾性表面波発振器、ならびに電子機器
JP2012049818A (ja) 2010-08-26 2012-03-08 Seiko Epson Corp 弾性表面波共振子、弾性表面波発振器、電子機器
JP2012060420A (ja) 2010-09-09 2012-03-22 Seiko Epson Corp 弾性表面波デバイス、電子機器及びセンサー装置
JP5652606B2 (ja) 2010-12-03 2015-01-14 セイコーエプソン株式会社 弾性表面波共振子、弾性表面波発振器、及び電子機器
JP5648908B2 (ja) 2010-12-07 2015-01-07 セイコーエプソン株式会社 振動デバイス、並びに発振器、および電子機器
US8816567B2 (en) 2011-07-19 2014-08-26 Qualcomm Mems Technologies, Inc. Piezoelectric laterally vibrating resonator structure geometries for spurious frequency suppression
DE102019107011A1 (de) * 2019-03-19 2020-09-24 RF360 Europe GmbH 11-IDT-DMS-Filter, elektroakustisches Filter und Multiplexer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154917A (ja) * 1982-03-10 1983-09-14 Hitachi Ltd 弾性表面波バンドパスフイルタ
JPS6194409A (ja) * 1984-10-15 1986-05-13 Clarion Co Ltd 弾性表面波素子の素子分離構造
JPS62115A (ja) * 1985-02-25 1987-01-06 Oki Electric Ind Co Ltd 弾性表面波フイルタ
JPS61220509A (ja) * 1985-03-27 1986-09-30 Hitachi Ltd 弾性表面波装置
JPS61252704A (ja) * 1985-05-01 1986-11-10 Hitachi Ltd 弾性表面波フイルタ
JPS63253712A (ja) * 1987-04-10 1988-10-20 Hitachi Ltd 弾性表面波バンドパスフイルタ

Also Published As

Publication number Publication date
KR940009395B1 (ko) 1994-10-07
EP0448357A2 (de) 1991-09-25
CA2038474A1 (en) 1991-09-20
EP0448357B1 (de) 1996-12-18
US5179310A (en) 1993-01-12
CA2038474C (en) 1994-09-20
KR910017739A (ko) 1991-11-05
DE69123620D1 (de) 1997-01-30
EP0448357A3 (en) 1991-12-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: TAIYO YUDEN CO., LTD., TOKIO/TOKYO, JP

8328 Change in the person/name/address of the agent

Representative=s name: SEEGER SEEGER LINDNER PARTNERSCHAFT PATENTANWAELTE