DE69323159T2 - Akustische Oberflächenwellenanordnung zur Erzeugung einer akustischen Ausgangssignalwelle mit nur einer symmetrischen oder nur einer assymmetrischen Schwingungsform - Google Patents

Akustische Oberflächenwellenanordnung zur Erzeugung einer akustischen Ausgangssignalwelle mit nur einer symmetrischen oder nur einer assymmetrischen Schwingungsform

Info

Publication number
DE69323159T2
DE69323159T2 DE69323159T DE69323159T DE69323159T2 DE 69323159 T2 DE69323159 T2 DE 69323159T2 DE 69323159 T DE69323159 T DE 69323159T DE 69323159 T DE69323159 T DE 69323159T DE 69323159 T2 DE69323159 T2 DE 69323159T2
Authority
DE
Germany
Prior art keywords
acoustic
symmetrical
generating
output signal
arrangement
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
DE69323159T
Other languages
English (en)
Other versions
DE69323159D1 (de
Inventor
Peter Wright
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.)
RF Monolithics Inc
Original Assignee
RF Monolithics Inc
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 RF Monolithics Inc filed Critical RF Monolithics Inc
Publication of DE69323159D1 publication Critical patent/DE69323159D1/de
Application granted granted Critical
Publication of DE69323159T2 publication Critical patent/DE69323159T2/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
    • H03H9/6433—Coupled resonator filters
    • 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
    • H03H9/6433—Coupled resonator filters
    • H03H9/644—Coupled resonator filters having two acoustic tracks
    • H03H9/6456—Coupled resonator filters having two acoustic tracks being electrically coupled
    • H03H9/6459—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode
    • H03H9/6463—Coupled resonator filters having two acoustic tracks being electrically coupled via one connecting electrode the tracks being electrically cascaded

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE69323159T 1992-11-25 1993-10-18 Akustische Oberflächenwellenanordnung zur Erzeugung einer akustischen Ausgangssignalwelle mit nur einer symmetrischen oder nur einer assymmetrischen Schwingungsform Expired - Fee Related DE69323159T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/982,190 US5374908A (en) 1992-11-25 1992-11-25 Surface acoustic wave device for generating an output signal with only a symmetric or only an asymmetric vibration mode acoustic wave

Publications (2)

Publication Number Publication Date
DE69323159D1 DE69323159D1 (de) 1999-03-04
DE69323159T2 true DE69323159T2 (de) 1999-09-16

Family

ID=25528918

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69323159T Expired - Fee Related DE69323159T2 (de) 1992-11-25 1993-10-18 Akustische Oberflächenwellenanordnung zur Erzeugung einer akustischen Ausgangssignalwelle mit nur einer symmetrischen oder nur einer assymmetrischen Schwingungsform

Country Status (4)

Country Link
US (1) US5374908A (de)
EP (1) EP0599475B1 (de)
JP (1) JPH06216694A (de)
DE (1) DE69323159T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69424737T2 (de) * 1993-10-08 2000-09-28 Matsushita Electric Ind Co Ltd Akustisches Oberflächenwellenfilter
US5955933A (en) * 1994-11-10 1999-09-21 Fujitsu Limited Saw resonator with improved connections
FR2739232B1 (fr) * 1995-09-26 1997-10-24 Thomson Csf Filtre a ondes acoustiques de surface utilisant le couplage de trois voies acoustiques
GB2312109B (en) * 1996-03-29 2000-08-02 Advanced Saw Prod Sa Acoustic wave filter
GB2312110B (en) * 1996-03-29 2000-07-05 Advanced Saw Prod Sa Acoustic wave filter
JP3226472B2 (ja) * 1996-05-14 2001-11-05 富士通株式会社 弾性表面波多重モードフィルタ
US6348845B2 (en) * 1996-05-23 2002-02-19 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter and multistage surface acoustic wave filter
US6801100B2 (en) * 1996-05-23 2004-10-05 Matsushita Electric Industrial Co., Ltd. Inter-digital transducer, surface acoustic wave filter and communication apparatus using the same
DE19638453A1 (de) * 1996-09-19 1998-04-02 Siemens Matsushita Components Resonante OFW-Struktur
DE19638398C2 (de) * 1996-09-19 1999-12-30 Siemens Matsushita Components Oberflächenwellen-Bauelement
US6384698B1 (en) 1999-04-28 2002-05-07 Seiko Epson Corporation Transverse double mode saw filter
JP2001014093A (ja) * 1999-06-30 2001-01-19 Touch Panel Systems Kk 音響的接触検出装置
JP2001014094A (ja) 1999-06-30 2001-01-19 Touch Panel Systems Kk 音響的接触検出装置
WO2002087080A1 (en) * 2001-04-19 2002-10-31 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave device and its manufacture method, and electronic part using it

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3886504A (en) * 1974-05-20 1975-05-27 Texas Instruments Inc Acoustic surface wave resonator devices
FR2290786A1 (fr) * 1974-11-08 1976-06-04 Thomson Csf Dispositif a reflexion selective d'ondes elastiques de surface
US4060777A (en) * 1976-05-19 1977-11-29 Piezo Technology Inc. Guided elastic surface wave filter
US4144507A (en) * 1976-09-29 1979-03-13 Texas Instruments Incorporated Surface acoustic wave resonator incorporating coupling transducer into reflecting arrays
GB1554366A (en) * 1977-02-04 1979-10-17 Philips Electronic Associated Acoustic surface wave devices
US4237433A (en) * 1979-03-13 1980-12-02 Sperry Corporation Surface acoustic wave resonators with integrated internal coupler reflectors
GB2078042B (en) * 1980-06-13 1984-08-08 Nippon Telegraph & Telephone Surface acoustic wave resonator
JPS57119509A (en) * 1981-01-19 1982-07-26 Toshiba Corp Surface acoustic wave resonator
GB2117992B (en) * 1982-03-24 1985-09-18 Philips Electronic Associated Parallel-series acoustic wave device arrangement
US4454488A (en) * 1982-07-08 1984-06-12 R F Monolithics, Inc. Surface acoustic wave resonator with middle grating
USRE33957E (en) * 1982-07-26 1992-06-09 Toyo Communication Equipment Co., Ltd. High frequency narrow-band multi-mode filter
JPS59131213A (ja) * 1982-07-26 1984-07-28 Toyo Commun Equip Co Ltd 高周波狭帯域多重モ−ド・フイルタ
EP0100503B1 (de) * 1982-07-26 1990-12-12 Toyo Communication Equipment Co.,Ltd. Hochfrequentes Multimodefilter mit schmalem Durchlassband
JPH0773177B2 (ja) * 1984-12-17 1995-08-02 株式会社東芝 弾性表面波共振子
JPH0654858B2 (ja) * 1987-05-18 1994-07-20 日本電気株式会社 弾性表面波多重モ−ドフィルタ
JPS6454805A (en) * 1987-08-25 1989-03-02 Oki Electric Ind Co Ltd Surface acoustic wave resonator
JPH01260911A (ja) * 1988-04-11 1989-10-18 Hitachi Ltd 弾性表面波共振器複合形フィルタ
JPH0767060B2 (ja) * 1989-10-03 1995-07-19 国際電気株式会社 単一モード２端子対弾性表面波共振子および弾性表面波フィルタ

Also Published As

Publication number Publication date
JPH06216694A (ja) 1994-08-05
DE69323159D1 (de) 1999-03-04
EP0599475A1 (de) 1994-06-01
US5374908A (en) 1994-12-20
EP0599475B1 (de) 1999-01-20

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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