FR2157531A5 - - Google Patents

Info

Publication number
FR2157531A5
FR2157531A5 FR7236690A FR7236690A FR2157531A5 FR 2157531 A5 FR2157531 A5 FR 2157531A5 FR 7236690 A FR7236690 A FR 7236690A FR 7236690 A FR7236690 A FR 7236690A FR 2157531 A5 FR2157531 A5 FR 2157531A5
Authority
FR
France
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
FR7236690A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Application granted granted Critical
Publication of FR2157531A5 publication Critical patent/FR2157531A5/fr
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
    • 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
    • H03H9/14508—Polyphase SAW transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
FR7236690A 1971-10-18 1972-10-17 Expired FR2157531A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/189,997 US4087714A (en) 1971-10-18 1971-10-18 Three phase unidirectional transducer

Publications (1)

Publication Number Publication Date
FR2157531A5 true FR2157531A5 (fr) 1973-06-01

Family

ID=22699640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7236690A Expired FR2157531A5 (fr) 1971-10-18 1972-10-17

Country Status (5)

Country Link
US (1) US4087714A (fr)
JP (1) JPS4850654A (fr)
DE (1) DE2249509A1 (fr)
FR (1) FR2157531A5 (fr)
NL (1) NL7214047A (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4267533A (en) * 1980-02-01 1981-05-12 Gte Laboratories Incorporated Acoustic surface wave device
FR2480509A1 (fr) * 1980-04-14 1981-10-16 Thomson Csf Dispositif a ondes magnetostatiques de volume
JPS598418A (ja) * 1982-07-06 1984-01-17 Clarion Co Ltd 弾性表面波装置
US5264751A (en) * 1989-10-20 1993-11-23 Thomson-Csf Unilateral surface wave transducer
JP2844968B2 (ja) * 1991-06-27 1999-01-13 日本電気株式会社 弾性表面波フィルタ用重み付け電極
FR2695771B1 (fr) * 1992-09-15 1994-10-28 Thomson Csf Transducteur d'ondes unidirectionnel.
US5365207A (en) * 1992-12-31 1994-11-15 Motorola, Inc. Multi-bandwidth saw filter
EP0704967B1 (fr) * 1994-09-28 2001-08-08 Masao Takeuchi Dispositif à ondes acoustiques de surface
US7908856B2 (en) * 2007-10-24 2011-03-22 Los Alamos National Security, Llc In-line stirling energy system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243648A (en) * 1962-03-28 1966-03-29 Gen Telephone & Elect Piezoelectric energy conversion and electroluminescent display device
US3401360A (en) * 1963-07-19 1968-09-10 Bell Telephone Labor Inc Phased transducer arrays for elastic wave transmission
US3686518A (en) * 1970-09-02 1972-08-22 Clinton S Hartmann Unidirectional surface wave transducers

Also Published As

Publication number Publication date
NL7214047A (fr) 1973-04-24
US4087714A (en) 1978-05-02
JPS4850654A (fr) 1973-07-17
DE2249509A1 (de) 1973-04-26

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Legal Events

Date Code Title Description
ST Notification of lapse