DE3267639D1 - Surface acoustic wave device - Google Patents

Surface acoustic wave device

Info

Publication number
DE3267639D1
DE3267639D1 DE8282300379T DE3267639T DE3267639D1 DE 3267639 D1 DE3267639 D1 DE 3267639D1 DE 8282300379 T DE8282300379 T DE 8282300379T DE 3267639 T DE3267639 T DE 3267639T DE 3267639 D1 DE3267639 D1 DE 3267639D1
Authority
DE
Germany
Prior art keywords
acoustic wave
surface acoustic
wave device
wave
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
Application number
DE8282300379T
Other languages
English (en)
Inventor
Kentaro Setsune
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
Priority claimed from JP1616981A external-priority patent/JPS57129510A/ja
Priority claimed from JP9359881A external-priority patent/JPS57207411A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE3267639D1 publication Critical patent/DE3267639D1/de
Expired 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
    • H03H9/14502—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)
DE8282300379T 1981-02-04 1982-01-26 Surface acoustic wave device Expired DE3267639D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1616981A JPS57129510A (en) 1981-02-04 1981-02-04 Surface acoustic wave device
JP9359881A JPS57207411A (en) 1981-06-16 1981-06-16 Surface acoustic wave device

Publications (1)

Publication Number Publication Date
DE3267639D1 true DE3267639D1 (en) 1986-01-09

Family

ID=26352434

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282300379T Expired DE3267639D1 (en) 1981-02-04 1982-01-26 Surface acoustic wave device

Country Status (4)

Country Link
US (1) US4464597A (de)
EP (1) EP0057555B1 (de)
CA (1) CA1183938A (de)
DE (1) DE3267639D1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4902925A (en) * 1982-07-29 1990-02-20 R.F. Monolithics, Inc. Reflectionless transducer
GB8327551D0 (en) * 1983-10-14 1983-11-16 Secr Defence Acoustic transducer
DE3529901A1 (de) * 1985-08-21 1987-02-26 Siemens Ag Mit akustischen wellen arbeitender zweispur-convolver mit unterdrueckung des selbstfaltungssignals
DE3529902A1 (de) * 1985-08-21 1987-02-26 Siemens Ag Convolver-anordnung mit akustischen wellen
US4841265A (en) * 1987-09-25 1989-06-20 Nec Corporation Surface acoustic wave filter
JP2685537B2 (ja) * 1988-10-03 1997-12-03 株式会社日立製作所 弾性表面波装置、その製作方法、その調整方法、及びそれを用いた通信装置
US5175711A (en) * 1988-10-03 1992-12-29 Hitachi, Ltd. Surface acoustic wave apparatus and method of productivity and adjustment of the same
US4945354A (en) * 1988-11-25 1990-07-31 Gte Products Spurious signal correction for surface acoustic wave (SAW) security devices
JP2601543B2 (ja) * 1989-04-25 1997-04-16 日本無線株式会社 弾性表面波フィルタ
US5196753A (en) * 1989-07-31 1993-03-23 Raytheon Company Surface acoustic wave devices having long-term frequency stability
FR2650919B1 (fr) * 1989-08-10 1992-01-03 Dassault Electronique Dispositif acoustoelectrique a ondes de surface perfectionne
US5028831A (en) * 1990-04-04 1991-07-02 Motorola, Inc. SAW reflectionless quarter-wavelength transducers
DE4227340C2 (de) * 1991-08-22 1995-09-21 Hitachi Ltd Oberflächenwellen-Bauelement
JP3363937B2 (ja) * 1992-03-26 2003-01-08 日本碍子株式会社 弾性表面波フィルタ装置
JP3435830B2 (ja) * 1994-09-02 2003-08-11 株式会社日立製作所 弾性表面波装置および弾性表面波装置を用いた通信装置
US6144288A (en) * 1997-03-28 2000-11-07 Eaton Corporation Remote wireless switch sensing circuit using RF transceiver in combination with a SAW chirp processor
US6104260A (en) * 1997-12-22 2000-08-15 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter with first and second filter tracks and balanced or unbalanced terminals
CN1206259C (zh) * 2000-02-01 2005-06-15 新日铁化学株式会社 粘结用聚酰亚胺树脂及粘合性层压板
US6825794B2 (en) 2000-06-02 2004-11-30 Research In Motion Limited Wireless communication system using surface acoustic wave (SAW) second harmonic techniques
KR20060121906A (ko) * 2003-10-08 2006-11-29 알에프 소 콤포넌츠 인코포레이티드 단상 단방향 표면 탄성파 변환기 및 개선된 반사기
JP4706756B2 (ja) * 2006-11-08 2011-06-22 パナソニック株式会社 弾性表面波共振器
TWI393340B (zh) * 2009-02-13 2013-04-11 中原大學 球形旋轉式壓電馬達

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748603A (en) * 1972-03-27 1973-07-24 Zenith Radio Corp Surface wave filter with reflection suppression
US3866154A (en) * 1973-12-03 1975-02-11 Westinghouse Electric Corp Broadband unidirectional surface wave transducer
US3970970A (en) * 1975-06-30 1976-07-20 Motorola, Inc. Multiple acoustically coupled surface acoustic wave resonators
JPS5438741A (en) * 1977-09-02 1979-03-23 Hitachi Ltd Elastic surface wave element
US4146808A (en) * 1977-11-10 1979-03-27 The United States Of America As Represented By The Secretary Of The Air Force Thinned withdrawal weighted surface acoustic wave interdigital transducers
DE2950896A1 (de) * 1979-12-18 1981-06-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schmalbandiges oberflaechenwellenfilter

Also Published As

Publication number Publication date
CA1183938A (en) 1985-03-12
US4464597A (en) 1984-08-07
EP0057555A3 (en) 1982-08-25
EP0057555B1 (de) 1985-11-27
EP0057555A2 (de) 1982-08-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8320 Willingness to grant licences declared (paragraph 23)