DE3750833T2 - Unidirektionale akustische Oberflächenwellenanordnung. - Google Patents

Unidirektionale akustische Oberflächenwellenanordnung.

Info

Publication number
DE3750833T2
DE3750833T2 DE3750833T DE3750833T DE3750833T2 DE 3750833 T2 DE3750833 T2 DE 3750833T2 DE 3750833 T DE3750833 T DE 3750833T DE 3750833 T DE3750833 T DE 3750833T DE 3750833 T2 DE3750833 T2 DE 3750833T2
Authority
DE
Germany
Prior art keywords
acoustic wave
surface acoustic
wave arrangement
unidirectional surface
unidirectional
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
DE3750833T
Other languages
English (en)
Other versions
DE3750833D1 (de
Inventor
Takashi Shiba
Yuji Fujita
Toshimitsu Takahashi
Jun Yamada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Application granted granted Critical
Publication of DE3750833D1 publication Critical patent/DE3750833D1/de
Publication of DE3750833T2 publication Critical patent/DE3750833T2/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
    • 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)
DE3750833T 1986-09-19 1987-09-15 Unidirektionale akustische Oberflächenwellenanordnung. Expired - Fee Related DE3750833T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61219351A JP2817041B2 (ja) 1986-09-19 1986-09-19 弾性表面波装置

Publications (2)

Publication Number Publication Date
DE3750833D1 DE3750833D1 (de) 1995-01-19
DE3750833T2 true DE3750833T2 (de) 1995-08-03

Family

ID=16734080

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3750833T Expired - Fee Related DE3750833T2 (de) 1986-09-19 1987-09-15 Unidirektionale akustische Oberflächenwellenanordnung.

Country Status (4)

Country Link
US (1) US4775846A (de)
EP (1) EP0260656B1 (de)
JP (1) JP2817041B2 (de)
DE (1) DE3750833T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5313177A (en) * 1992-04-06 1994-05-17 Motorola, Inc. Method and apparatus for an acoustic wave filter
FR2695771B1 (fr) * 1992-09-15 1994-10-28 Thomson Csf Transducteur d'ondes unidirectionnel.
US6459345B1 (en) * 2001-08-08 2002-10-01 The United States Of America As Represented By The Secretary Of The Army Programmable saw filter including unidirectional transducers
US7750752B1 (en) * 2007-06-13 2010-07-06 The United States Of America As Represented By The Secretary Of The Army Programmable SAW filter module
US8456257B1 (en) 2009-11-12 2013-06-04 Triquint Semiconductor, Inc. Bulk acoustic wave devices and method for spurious mode suppression

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534513A (en) * 1978-09-01 1980-03-11 Toshiba Corp Elastic surface wave device using one-directional transducer
JPS5544245A (en) * 1978-09-22 1980-03-28 Clarion Co Ltd Frequency selection unit
JPS5566120A (en) * 1978-11-13 1980-05-19 Hitachi Ltd Elastic surface wave device
JPS57184316A (en) * 1981-05-08 1982-11-13 Hitachi Ltd Surface acocustic wave device
JPS5859614A (ja) * 1981-10-02 1983-04-08 Nec Corp 弾性表面波装置
JPS58197911A (ja) * 1982-05-14 1983-11-17 Hitachi Ltd 振幅周波数特性の可変な弾性波装置
JPS59123305A (ja) * 1982-12-29 1984-07-17 Murata Mfg Co Ltd 弾性表面波フイルタ
EP0104314A3 (de) * 1982-09-07 1985-09-11 Siemens-Albis Aktiengesellschaft SAW-Filter

Also Published As

Publication number Publication date
US4775846A (en) 1988-10-04
EP0260656A3 (en) 1989-05-24
JP2817041B2 (ja) 1998-10-27
JPS6376513A (ja) 1988-04-06
EP0260656A2 (de) 1988-03-23
EP0260656B1 (de) 1994-12-07
DE3750833D1 (de) 1995-01-19

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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