DE69321414T2 - Filtergerät mit akustischen Oberflächenwellen - Google Patents

Filtergerät mit akustischen Oberflächenwellen

Info

Publication number
DE69321414T2
DE69321414T2 DE69321414T DE69321414T DE69321414T2 DE 69321414 T2 DE69321414 T2 DE 69321414T2 DE 69321414 T DE69321414 T DE 69321414T DE 69321414 T DE69321414 T DE 69321414T DE 69321414 T2 DE69321414 T2 DE 69321414T2
Authority
DE
Germany
Prior art keywords
filter device
surface acoustic
acoustic waves
waves
filter
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
DE69321414T
Other languages
English (en)
Other versions
DE69321414D1 (de
Inventor
Kazuhiko Yamanouchi
Mitsuhiro Tanaka
Yasufumi Horio
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
Priority claimed from JP4215370A external-priority patent/JP3035085B2/ja
Priority claimed from JP4361917A external-priority patent/JP2583384B2/ja
Priority claimed from JP4536293A external-priority patent/JPH06260879A/ja
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Application granted granted Critical
Publication of DE69321414D1 publication Critical patent/DE69321414D1/de
Publication of DE69321414T2 publication Critical patent/DE69321414T2/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
    • H03H9/6426—Combinations of the characteristics of different 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
    • H03H9/14502—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)
DE69321414T 1992-07-02 1993-07-02 Filtergerät mit akustischen Oberflächenwellen Expired - Fee Related DE69321414T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4215370A JP3035085B2 (ja) 1992-07-02 1992-07-02 一方向性弾性表面波変換器
JP4361917A JP2583384B2 (ja) 1992-12-22 1992-12-22 内部反射形一方向性弾性表面波変換器及びこれを用いた電子装置
JP4536293A JPH06260879A (ja) 1993-03-05 1993-03-05 弾性表面波フィルタ装置

Publications (2)

Publication Number Publication Date
DE69321414D1 DE69321414D1 (de) 1998-11-12
DE69321414T2 true DE69321414T2 (de) 1999-04-01

Family

ID=27292205

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69321414T Expired - Fee Related DE69321414T2 (de) 1992-07-02 1993-07-02 Filtergerät mit akustischen Oberflächenwellen

Country Status (3)

Country Link
US (1) US5438306A (de)
EP (1) EP0580307B1 (de)
DE (1) DE69321414T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002605A1 (de) * 2009-04-23 2010-11-18 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Unidirektionaler Wandler für akustische Oberflächenwellen

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0685597A (ja) * 1992-09-02 1994-03-25 Mitsubishi Electric Corp 弾性表面波装置
FR2695771B1 (fr) * 1992-09-15 1994-10-28 Thomson Csf Transducteur d'ondes unidirectionnel.
US5703427A (en) * 1993-03-19 1997-12-30 Thomson-Csf Surface-wave distributed acoustic reflection transducer and filter including such a transducer
US5793146A (en) * 1993-11-12 1998-08-11 Rf Monolithics, Inc. Surface acoustic wave transducer having selected reflectivity
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
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
US5952765A (en) * 1996-11-26 1999-09-14 Trw Inc. Reduced coupling saw filter
JPH10256870A (ja) * 1997-03-14 1998-09-25 Ngk Insulators Ltd 弾性表面波デバイス
DE19907640A1 (de) * 1998-03-25 1999-10-07 Dresden Ev Inst Festkoerper Akustisches Oberflächenwellenbauelement
US6246150B1 (en) * 1999-10-28 2001-06-12 Kabushiki Kaisha Toshiba Surface acoustic wave device
US6825794B2 (en) * 2000-06-02 2004-11-30 Research In Motion Limited Wireless communication system using surface acoustic wave (SAW) second harmonic techniques
DE10113788A1 (de) 2001-03-21 2002-09-26 Zeiss Carl Beugungsoptische Komponente, Beleuchtungssystem und Belichtungssystem mit einer solchen beugungsoptischen Komponente und Belichtungsverfahren unter Verwendung eines solchen Belichtungssystems
DE102019113282A1 (de) * 2019-05-20 2020-11-26 RF360 Europe GmbH Akustische Verzögerungskomponente

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727155A (en) * 1972-03-20 1973-04-10 Zenith Radio Corp Acoustic surface wave filter
US3748603A (en) * 1972-03-27 1973-07-24 Zenith Radio Corp Surface wave filter with reflection suppression
US3987376A (en) * 1974-03-22 1976-10-19 Hazeltine Corporation Acoustic surface wave device with harmonic coupled transducers
JPS5610724A (en) * 1979-07-09 1981-02-03 Toshiba Corp Elastic surface wave transducer
JPS62210713A (ja) * 1986-03-12 1987-09-16 Kazuhiko Yamanouchi 弾性表面波共振器
JP2779675B2 (ja) * 1989-12-31 1998-07-23 和彦 山之内 弾性表面波デバイス及び弾性表面波フィルタ
JPH04138710A (ja) * 1990-09-28 1992-05-13 Nec Corp 弾性表面波フィルタ
JP3096102B2 (ja) * 1991-08-29 2000-10-10 和彦 山之内 弾性表面波フィルタ装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009002605A1 (de) * 2009-04-23 2010-11-18 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Unidirektionaler Wandler für akustische Oberflächenwellen
DE102009002605B4 (de) * 2009-04-23 2014-02-13 Leibniz-Institut Für Festkörper- Und Werkstoffforschung Dresden E.V. Unidirektionaler Wandler für akustische Oberflächenwellen

Also Published As

Publication number Publication date
US5438306A (en) 1995-08-01
DE69321414D1 (de) 1998-11-12
EP0580307B1 (de) 1998-10-07
EP0580307A1 (de) 1994-01-26

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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