JPS54844A - Elastic surface wave filter - Google Patents

Elastic surface wave filter

Info

Publication number
JPS54844A
JPS54844A JP6614177A JP6614177A JPS54844A JP S54844 A JPS54844 A JP S54844A JP 6614177 A JP6614177 A JP 6614177A JP 6614177 A JP6614177 A JP 6614177A JP S54844 A JPS54844 A JP S54844A
Authority
JP
Japan
Prior art keywords
surface wave
elastic surface
wave filter
transducer
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.)
Granted
Application number
JP6614177A
Other languages
English (en)
Other versions
JPS5740683B2 (ja
Inventor
Katsuhide Tsukamoto
Masahiro Nagasawa
Hiroshi Yamazoe
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6614177A priority Critical patent/JPS54844A/ja
Priority to GB22206/78A priority patent/GB1604573A/en
Priority to US05/911,082 priority patent/US4203082A/en
Priority to DE2824371A priority patent/DE2824371C2/de
Priority to FR7816625A priority patent/FR2401551A1/fr
Publication of JPS54844A publication Critical patent/JPS54844A/ja
Publication of JPS5740683B2 publication Critical patent/JPS5740683B2/ja
Granted 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
    • H03H9/02—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
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0028—Balance-unbalance or balance-balance networks using surface acoustic wave devices
    • H03H9/0033—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only
    • H03H9/0038—Balance-unbalance or balance-balance networks using surface acoustic wave devices having one acoustic track only the balanced terminals being on the same side of the track
    • 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
    • H03H9/1452—Means for weighting by finger overlap length, apodisation
    • 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
    • H03H9/125—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
    • H03H9/14558—Slanted, tapered or fan shaped 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
    • H03H9/14564—Shifted fingers 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
    • H03H9/14564—Shifted fingers transducers
    • H03H9/14567—Stepped-fan shaped 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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • 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)
JP6614177A 1977-06-03 1977-06-03 Elastic surface wave filter Granted JPS54844A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP6614177A JPS54844A (en) 1977-06-03 1977-06-03 Elastic surface wave filter
GB22206/78A GB1604573A (en) 1977-06-03 1978-05-24 Surface acoustic wave filter
US05/911,082 US4203082A (en) 1977-06-03 1978-05-31 Surface acoustic wave filter
DE2824371A DE2824371C2 (de) 1977-06-03 1978-06-01 Akustisches Oberflächenwellenfilter
FR7816625A FR2401551A1 (fr) 1977-06-03 1978-06-02 Filtre a ondes acoustiques de surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6614177A JPS54844A (en) 1977-06-03 1977-06-03 Elastic surface wave filter

Publications (2)

Publication Number Publication Date
JPS54844A true JPS54844A (en) 1979-01-06
JPS5740683B2 JPS5740683B2 (ja) 1982-08-30

Family

ID=13307275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6614177A Granted JPS54844A (en) 1977-06-03 1977-06-03 Elastic surface wave filter

Country Status (5)

Country Link
US (1) US4203082A (ja)
JP (1) JPS54844A (ja)
DE (1) DE2824371C2 (ja)
FR (1) FR2401551A1 (ja)
GB (1) GB1604573A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799396A (en) * 1986-03-25 1989-01-24 Machine Engineering Co., Ltd. Reduction gear
JPH05121995A (ja) * 1991-10-30 1993-05-18 Mitsubishi Electric Corp 弾性表面波回路装置
KR100812064B1 (ko) 2006-09-08 2008-03-07 에스케이 텔레콤주식회사 양방향 표면 탄성파 필터
JP2012199670A (ja) * 2011-03-18 2012-10-18 Nippon Dempa Kogyo Co Ltd 弾性波フィルタ
JP2016517190A (ja) * 2012-12-13 2016-06-09 エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ 平坦化された挿入損失を有する電子音響バンドパスフィルタ

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2839851C2 (de) * 1978-09-13 1980-09-25 Siemens Ag, 1000 Berlin Und 8000 Muenchen Oberflächenwellenanordnung mit verbesserter Störsignalunterdrückung
JPS5561126A (en) * 1978-11-01 1980-05-08 Hitachi Ltd Elastic surface wave device
FR2447644A1 (fr) * 1979-01-26 1980-08-22 Thomson Csf Transducteur d'ondes elastiques de surface et filtre comprenant un tel transducteur
JPS5843609A (ja) * 1981-09-09 1983-03-14 Toshiba Corp 弾性表面波装置
JPS58154917A (ja) * 1982-03-10 1983-09-14 Hitachi Ltd 弾性表面波バンドパスフイルタ
US4707631A (en) * 1984-02-15 1987-11-17 Trw Inc. Isotropic acoustic wave substrate
FR2571907B1 (fr) * 1984-10-15 1991-02-08 Clarion Co Ltd Dispositif a onde acoustique de surface
GB2193060B (en) * 1986-07-16 1991-04-03 Japan Radio Co Ltd Surface elastic wave filter
GB2212685B (en) * 1987-11-17 1992-10-14 Japan Radio Co Ltd Surface elastic wave device
JP2606708B2 (ja) * 1987-11-17 1997-05-07 日本無線株式会社 弾性表面波フィルタ
US4941133A (en) * 1989-06-26 1990-07-10 The United States Of America As Represented By The Secretary Of The Army Saw slanted array correlator (SAC) with separate amplitude compensation channel
JPH03293808A (ja) * 1990-04-11 1991-12-25 Fujitsu Ltd 弾性表面波素子の製造方法
DE4307726C1 (de) * 1993-03-11 1994-07-28 Siemens Matsushita Components Mit akustischen Oberflächenwellen arbeitendes Bauelement
DE59510808D1 (de) * 1994-11-08 2003-11-20 Hera Rotterdam Bv Verfahren zum berührungslosen identifizieren von mobilen transpondern
US5831492A (en) * 1995-09-15 1998-11-03 Sawtek Inc. Weighted tapered spudt saw device
US5818310A (en) * 1996-08-27 1998-10-06 Sawtek Inc. Series-block and line-width weighted saw filter device
US5831494A (en) * 1996-12-12 1998-11-03 Sawtek Inc. Dual track low-loss reflective saw filter
US5767604A (en) * 1997-03-06 1998-06-16 Toda; Kohji Elastic wave device for sensing a touch-position
US6023122A (en) * 1999-04-15 2000-02-08 Nortel Networks Corporation Surface wave devices with tapered transducers
DE10025450B4 (de) * 2000-05-23 2010-04-15 Epcos Ag Oberflächenwellen-Bandpassfilter in Drei-Wandler-Anordnung
JP3934544B2 (ja) * 2002-04-11 2007-06-20 富士通株式会社 弾性波観測装置
JP4085895B2 (ja) * 2003-06-19 2008-05-14 セイコーエプソン株式会社 弾性表面波フィルタおよび弾性表面波共振器
JP2005150918A (ja) * 2003-11-12 2005-06-09 Murata Mfg Co Ltd 弾性表面波フィルタ
RU208596U1 (ru) * 2021-08-04 2021-12-27 Акционерное общество "Омский научно-исследовательский институт приборостроения" (АО "ОНИИП") Трехпреобразовательный веерный фильтр на поверхностных акустических волнах

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1260525A (en) * 1969-03-31 1972-01-19 Zenith Radio Corp An acoustic electric filter system
US3727718A (en) * 1971-11-24 1973-04-17 Us Navy Surface wave ambiguity analyzer
JPS519648A (ja) * 1974-07-15 1976-01-26 Nippon Telegraph & Telephone
DE2435751A1 (de) * 1974-07-25 1976-02-12 Licentia Gmbh Akustisches oberflaechenwellenfilter
CA1047615A (en) * 1974-12-25 1979-01-30 Yasutoshi Komatsu Surface acoustic wave filter
US4016513A (en) * 1975-12-04 1977-04-05 Sperry Rand Corporation Surface wave convolver apparatus
AT341578B (de) * 1975-12-19 1978-02-10 Hans Dr Kuzmany Elektroakustischer wandler zur elektrischen anregung einer akustischen oberflachenwelle bzw. zur akustischen anregung einer elektrischen welle durch den piezoelektrischen effekt
US4081769A (en) * 1976-09-13 1978-03-28 Texas Instruments Incorporated Acoustic surface wave resonator with suppressed direct coupled response

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4799396A (en) * 1986-03-25 1989-01-24 Machine Engineering Co., Ltd. Reduction gear
JPH05121995A (ja) * 1991-10-30 1993-05-18 Mitsubishi Electric Corp 弾性表面波回路装置
KR100812064B1 (ko) 2006-09-08 2008-03-07 에스케이 텔레콤주식회사 양방향 표면 탄성파 필터
JP2012199670A (ja) * 2011-03-18 2012-10-18 Nippon Dempa Kogyo Co Ltd 弾性波フィルタ
JP2016517190A (ja) * 2012-12-13 2016-06-09 エプコス アクチエンゲゼルシャフトＥｐｃｏｓ Ａｇ 平坦化された挿入損失を有する電子音響バンドパスフィルタ

Also Published As

Publication number Publication date
DE2824371A1 (de) 1979-01-18
JPS5740683B2 (ja) 1982-08-30
GB1604573A (en) 1981-12-09
US4203082A (en) 1980-05-13
FR2401551A1 (fr) 1979-03-23
FR2401551B1 (ja) 1982-08-13
DE2824371C2 (de) 1984-07-05

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