DE69626626D1 - Akustischer oberflächenkonverter und akustisches wellenfilter damit - Google Patents

Akustischer oberflächenkonverter und akustisches wellenfilter damit

Info

Publication number
DE69626626D1
DE69626626D1 DE69626626T DE69626626T DE69626626D1 DE 69626626 D1 DE69626626 D1 DE 69626626D1 DE 69626626 T DE69626626 T DE 69626626T DE 69626626 T DE69626626 T DE 69626626T DE 69626626 D1 DE69626626 D1 DE 69626626D1
Authority
DE
Germany
Prior art keywords
acoustic
wave filter
filter therefor
acoustic wave
surface converter
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 - Fee Related
Application number
DE69626626T
Other languages
English (en)
Other versions
DE69626626T2 (de
Inventor
Masao Takeuchi
Kazuhiko Yamanouchi
Hiroyuki Odagawa
Mitsuhiro Tanaka
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.)
NGK Insulators Ltd
Original Assignee
NGK Insulators 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
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Publication of DE69626626D1 publication Critical patent/DE69626626D1/de
Application granted granted Critical
Publication of DE69626626T2 publication Critical patent/DE69626626T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • 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
    • H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger 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
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/02716—Tilted, fan shaped or slanted grating lines
    • 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
    • H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
    • H03H9/14505—Unidirectional SAW 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
    • H03H9/02—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
    • H03H9/14594—Plan-rotated or plan-tilted 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
    • H03H9/02—Details
    • H03H9/125—Driving means, e.g. electrodes, coils
    • H03H9/145—Driving means, e.g. electrodes, coils for networks using surface acoustic waves
    • H03H9/14517—Means for weighting
    • 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
    • H03H9/14552—Transducers of particular shape or position comprising split fingers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE69626626T 1995-11-08 1996-11-08 Akustischer oberflächenkonverter und akustisches wellenfilter damit Expired - Fee Related DE69626626T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP29005795A JP3268179B2 (ja) 1995-11-08 1995-11-08 弾性表面波変換器及びこの変換器を用いた弾性表面波フィルタ
PCT/JP1996/003284 WO1997017757A1 (fr) 1995-11-08 1996-11-08 Convertisseur d'ondes sonores de surface et dispositif de filtrage acoustique l'utilisant

Publications (2)

Publication Number Publication Date
DE69626626D1 true DE69626626D1 (de) 2003-04-17
DE69626626T2 DE69626626T2 (de) 2003-12-04

Family

ID=17751236

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69626626T Expired - Fee Related DE69626626T2 (de) 1995-11-08 1996-11-08 Akustischer oberflächenkonverter und akustisches wellenfilter damit

Country Status (6)

Country Link
US (1) US6373353B1 (de)
EP (1) EP0802627B1 (de)
JP (1) JP3268179B2 (de)
KR (1) KR100300897B1 (de)
DE (1) DE69626626T2 (de)
WO (1) WO1997017757A1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6147574A (en) * 1997-11-20 2000-11-14 Murata Manufacturing Co., Ltd. Unidirectional surface acoustic wave transducer and transversal-type saw filter having the same
JP2000036722A (ja) 1998-05-11 2000-02-02 Tdk Corp 弾性表面波装置の設計方法および弾性表面波装置
JP3291255B2 (ja) 1998-09-22 2002-06-10 日本碍子株式会社 弾性表面波デバイス
US6534896B2 (en) * 2001-05-15 2003-03-18 Nortel Networks Limited Spatial harmonic transducers for surface wave devices
US7135805B2 (en) * 2003-04-08 2006-11-14 Nihon Dempa Kogyo Co., Ltd. Surface acoustic wave transducer
US8436509B1 (en) * 2008-07-08 2013-05-07 Saudia Corporation High-frequency shear-horizontal surface acoustic wave sensor
US9726646B1 (en) * 2013-05-29 2017-08-08 National Technology & Engineering Solutions Of Sandia, Llc Resonant surface acoustic wave chemical detector
WO2015064238A1 (ja) * 2013-10-31 2015-05-07 京セラ株式会社 弾性波素子、フィルタ素子および通信装置
US10700661B2 (en) * 2018-01-19 2020-06-30 Huawei Technologie Co., Ltd. Surface acoustic wave device with unidirectional transducer

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8327551D0 (en) 1983-10-14 1983-11-16 Secr Defence Acoustic transducer
JPS616916A (ja) 1984-06-20 1986-01-13 Kazuhiko Yamanouchi 浮き電極をもつ内部反射型一方向性弾性表面波変換器
US4910839A (en) * 1984-12-03 1990-03-27 R.F. Monolithics, Inc. Method of making a single phase unidirectional surface acoustic wave transducer
US4731595A (en) * 1986-01-24 1988-03-15 Rf Monolithics, Inc. Resonator structure
US4670680A (en) * 1986-07-29 1987-06-02 R. F. Monolithics, Inc. Doubly rotated orientations of cut angles for quartz crystal for novel surface acoustic wave devices
US4670681A (en) * 1986-07-29 1987-06-02 R. F. Monolithics, Inc. Singly rotated orientation of quartz crystals for novel surface acoustic wave devices
US5073763A (en) * 1990-11-02 1991-12-17 R.F. Monolithics, Inc. Group single-phase unidirectional transducers with 3/8λand 5/8λ sampling
US5081389A (en) * 1990-11-30 1992-01-14 Ascom Zelcom Ag. Crystal cut angles for lithium tantalate crystal for novel surface acoustic wave devices
JPH04309005A (ja) * 1991-04-08 1992-10-30 Matsushita Electric Ind Co Ltd 単相一方向性弾性表面波変換器
JP3296367B2 (ja) 1992-01-26 2002-06-24 和彦 山之内 浮き電極をもつ内部反射一方向性弾性表面波素子
FR2695771B1 (fr) * 1992-09-15 1994-10-28 Thomson Csf Transducteur d'ondes unidirectionnel.
JPH0722889A (ja) * 1993-06-30 1995-01-24 Nec Corp 弾性表面波変換器
JP3484237B2 (ja) * 1994-09-28 2004-01-06 日本碍子株式会社 弾性表面波デバイス
EP0704967B1 (de) * 1994-09-28 2001-08-08 Masao Takeuchi Akustische Oberflächenwellenanordnung
DE4438645A1 (de) * 1994-10-28 1996-05-02 Siemens Ag Mit akustischen Oberflächenwellen arbeitender Einphasen-Unidirektionalwandler

Also Published As

Publication number Publication date
EP0802627B1 (de) 2003-03-12
US6373353B1 (en) 2002-04-16
EP0802627A4 (de) 2001-05-09
JPH09135142A (ja) 1997-05-20
KR100300897B1 (ko) 2001-09-03
JP3268179B2 (ja) 2002-03-25
KR19980701280A (ko) 1998-05-15
WO1997017757A1 (fr) 1997-05-15
EP0802627A1 (de) 1997-10-22
DE69626626T2 (de) 2003-12-04

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee