DE3485238D1 - Akustische oberflaechenwellenanordnung. - Google Patents

Akustische oberflaechenwellenanordnung.

Info

Publication number
DE3485238D1
DE3485238D1 DE8484201202T DE3485238T DE3485238D1 DE 3485238 D1 DE3485238 D1 DE 3485238D1 DE 8484201202 T DE8484201202 T DE 8484201202T DE 3485238 T DE3485238 T DE 3485238T DE 3485238 D1 DE3485238 D1 DE 3485238D1
Authority
DE
Germany
Prior art keywords
surface wave
acoustic surface
wave arrangement
arrangement
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
DE8484201202T
Other languages
English (en)
Inventor
Robert Frederick Milsom
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of DE3485238D1 publication Critical patent/DE3485238D1/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
    • 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
    • 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
    • H03H9/02708—Shifted 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/0274—Intra-transducers grating lines

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
DE8484201202T 1983-08-31 1984-08-20 Akustische oberflaechenwellenanordnung. Expired - Lifetime DE3485238D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08323294A GB2145892A (en) 1983-08-31 1983-08-31 Surface acoustic wave device

Publications (1)

Publication Number Publication Date
DE3485238D1 true DE3485238D1 (de) 1991-12-12

Family

ID=10548082

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484201202T Expired - Lifetime DE3485238D1 (de) 1983-08-31 1984-08-20 Akustische oberflaechenwellenanordnung.

Country Status (5)

Country Link
US (1) US4727275A (de)
EP (1) EP0135957B1 (de)
JP (1) JPS6072312A (de)
DE (1) DE3485238D1 (de)
GB (1) GB2145892A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01101718A (ja) * 1987-10-14 1989-04-19 Clarion Co Ltd 弾性表面波装置
KR100207358B1 (ko) * 1994-10-31 1999-07-15 시바타 마사하루 탄성 표면파 필터 장치 및 탄성 표면파 필터 장치용 트랜스듀서
JP3315646B2 (ja) * 1998-06-19 2002-08-19 富士通株式会社 弾性表面波フィルタ
JP4718718B2 (ja) * 2001-05-10 2011-07-06 株式会社ミツバ カーボン基材の製造方法
JP3934544B2 (ja) * 2002-04-11 2007-06-20 富士通株式会社 弾性波観測装置
KR20040000967A (ko) * 2002-06-26 2004-01-07 엘지이노텍 주식회사 Ｓａｗ 필터
FR3100999B1 (fr) * 2019-09-25 2022-07-15 Lille Ecole Centrale Dispositif électroacoustique

Family Cites Families (13)

* 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
US4126837A (en) * 1974-07-01 1978-11-21 Nippon Telegraph And Telephone Public Corporation Impedance element and band-rejection filter using the same
US4038614A (en) * 1975-06-16 1977-07-26 Hughes Aircraft Company Fractional efficiency coupler
US4079342A (en) * 1976-09-15 1978-03-14 Sperry Rand Corporation Fanned multistrip coupler filters
GB1551530A (en) * 1977-05-12 1979-08-30 Standard Telephones Cables Ltd Surface acoustic wave resonamt transducer device
US4130813A (en) * 1977-05-23 1978-12-19 Raytheon Company Surface wave device having enhanced reflectivity gratings
JPS55112023A (en) * 1980-01-21 1980-08-29 Hitachi Ltd Elastic surface wave filter
GB2070379B (en) * 1980-02-21 1984-05-16 Philips Electronic Associated Acoustic wave bandpass electrical filters
US4370633A (en) * 1981-01-19 1983-01-25 U.S. Philips Corporation Acoustic wave bandpass electrical filters
JPS57119509A (en) * 1981-01-19 1982-07-26 Toshiba Corp Surface acoustic wave resonator
DE3130154A1 (de) * 1981-07-30 1983-02-17 Siemens Ag Oberflaechenwellen-anordnung mit integriertem anpassungsnetzwerk
GB2123636A (en) * 1982-07-05 1984-02-01 Philips Electronic Associated Acoustic surface wave device including a reflective multistrip coupler
US4510471A (en) * 1982-07-05 1985-04-09 U.S. Philips Corporation Acoustic surface wave device including a reflective multistrip coupler

Also Published As

Publication number Publication date
US4727275A (en) 1988-02-23
GB2145892A (en) 1985-04-03
GB8323294D0 (en) 1983-10-05
EP0135957B1 (de) 1991-11-06
EP0135957A2 (de) 1985-04-03
JPS6072312A (ja) 1985-04-24
EP0135957A3 (en) 1987-01-28

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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