DE69322117T2 - Akustische Oberflächenwellenfilteranordnung - Google Patents

Akustische Oberflächenwellenfilteranordnung

Info

Publication number
DE69322117T2
DE69322117T2 DE69322117T DE69322117T DE69322117T2 DE 69322117 T2 DE69322117 T2 DE 69322117T2 DE 69322117 T DE69322117 T DE 69322117T DE 69322117 T DE69322117 T DE 69322117T DE 69322117 T2 DE69322117 T2 DE 69322117T2
Authority
DE
Germany
Prior art keywords
wave filter
surface wave
filter arrangement
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 - Fee Related
Application number
DE69322117T
Other languages
English (en)
Other versions
DE69322117D1 (de
Inventor
Mitsuhiro Tanaka
Masahiko Sugiyama
Yasufumi Horio
Masatsugu Oshima
Kenji Suzuki
Kazuhiko Yamanouchi
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 DE69322117D1 publication Critical patent/DE69322117D1/de
Application granted granted Critical
Publication of DE69322117T2 publication Critical patent/DE69322117T2/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
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/643—Means for obtaining a particular transfer characteristic the transfer characteristic being determined by reflective or coupling array characteristics
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE69322117T 1992-03-26 1993-03-26 Akustische Oberflächenwellenfilteranordnung Expired - Fee Related DE69322117T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP6823392 1992-03-26
JP04536893A JP3363937B2 (ja) 1992-03-26 1993-03-05 弾性表面波フィルタ装置

Publications (2)

Publication Number Publication Date
DE69322117D1 DE69322117D1 (de) 1998-12-24
DE69322117T2 true DE69322117T2 (de) 1999-05-27

Family

ID=26385338

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69322117T Expired - Fee Related DE69322117T2 (de) 1992-03-26 1993-03-26 Akustische Oberflächenwellenfilteranordnung

Country Status (4)

Country Link
US (1) US5294859A (de)
EP (1) EP0562876B1 (de)
JP (1) JP3363937B2 (de)
DE (1) DE69322117T2 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0649219B1 (de) * 1993-10-15 2000-01-19 Ngk Insulators, Ltd. Akustische Oberflächenwellenfilteranordnung
US5710529A (en) * 1993-10-15 1998-01-20 Ngk Insulators, Ltd. Surface acoustic wave filer device having a cascade filter structure and a piezoelectric substrate having mirror-polished surfaces
EP0704967B1 (de) * 1994-09-28 2001-08-08 Masao Takeuchi Akustische Oberflächenwellenanordnung
US5663695A (en) * 1994-10-31 1997-09-02 Ngk Insulators, Ltd. Surface acoustic wave filter device and transducer therefor
JPH10135765A (ja) * 1996-10-30 1998-05-22 Nec Corp 一方向性弾性表面波フィルタ
TW432731B (en) 1998-12-01 2001-05-01 Murata Manufacturing Co Multilayer piezoelectric part
DE19925800C1 (de) * 1999-06-03 2000-12-21 Dresden Ev Inst Festkoerper Wandler für akustische Oberflächenwellen
GB0024853D0 (en) * 2000-10-11 2000-11-22 Morgan David P Transducers for surface acoustic wave devices
US7569971B2 (en) * 2007-10-02 2009-08-04 Delaware Capital Formation, Inc. Compensation of resonators for substrate and transducer asymmetry
JP2012070361A (ja) * 2010-08-27 2012-04-05 Panasonic Corp 弾性波素子
US11316495B2 (en) * 2017-11-15 2022-04-26 Huawei Technologies Co., Ltd. Surface acoustic wave device

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3360749A (en) 1964-12-09 1967-12-26 Bell Telephone Labor Inc Elastic wave delay device
JPS5616313A (en) * 1979-07-19 1981-02-17 Kimio Shibayama Distance-weighted type reed screen type surface elastic wave transducer
EP0057555B1 (de) * 1981-02-04 1985-11-27 Matsushita Electric Industrial Co., Ltd. Akustische Oberflächenwelleneinrichtung
EP0104314A3 (de) * 1982-09-07 1985-09-11 Siemens-Albis Aktiengesellschaft SAW-Filter
WO1986001655A1 (en) * 1984-09-03 1986-03-13 Epprecht, Georg Converter for surface-acoustic waves (saw)
JPH02238706A (ja) * 1989-03-13 1990-09-21 Hitachi Ltd 弾性表面波バンドパスフィルタ
JP3107381B2 (ja) * 1989-05-26 2000-11-06 株式会社日立製作所 弾性表面波デバイス
JPH0320929A (ja) * 1989-06-16 1991-01-29 Hitachi Ltd カラー陰極線管の製造方法
JP3175830B2 (ja) * 1989-10-19 2001-06-11 東洋通信機株式会社 一方向性ｓａｗフィルタ

Also Published As

Publication number Publication date
EP0562876B1 (de) 1998-11-18
JPH05347535A (ja) 1993-12-27
DE69322117D1 (de) 1998-12-24
JP3363937B2 (ja) 2003-01-08
US5294859A (en) 1994-03-15
EP0562876A1 (de) 1993-09-29

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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