JPS6142447B2 - - Google Patents

Info

Publication number
JPS6142447B2
JPS6142447B2 JP52076515A JP7651577A JPS6142447B2 JP S6142447 B2 JPS6142447 B2 JP S6142447B2 JP 52076515 A JP52076515 A JP 52076515A JP 7651577 A JP7651577 A JP 7651577A JP S6142447 B2 JPS6142447 B2 JP S6142447B2
Authority
JP
Japan
Prior art keywords
surface acoustic
acoustic wave
electrodes
electrode
transducer
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
JP52076515A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5412542A (en
Inventor
Jun Yamada
Takeshi Hazama
Yoshitsugu Miura
Yoshihiko Noro
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
Priority to JP7651577A priority Critical patent/JPS5412542A/ja
Publication of JPS5412542A publication Critical patent/JPS5412542A/ja
Publication of JPS6142447B2 publication Critical patent/JPS6142447B2/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 elements; 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 elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; 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
    • H03H9/14573—Arrow type transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP7651577A 1977-06-29 1977-06-29 Elastic surface wave unit Granted JPS5412542A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7651577A JPS5412542A (en) 1977-06-29 1977-06-29 Elastic surface wave unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7651577A JPS5412542A (en) 1977-06-29 1977-06-29 Elastic surface wave unit

Publications (2)

Publication Number Publication Date
JPS5412542A JPS5412542A (en) 1979-01-30
JPS6142447B2 true JPS6142447B2 (en, 2012) 1986-09-20

Family

ID=13607400

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7651577A Granted JPS5412542A (en) 1977-06-29 1977-06-29 Elastic surface wave unit

Country Status (1)

Country Link
JP (1) JPS5412542A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6466539A (en) * 1987-09-07 1989-03-13 Tabai Espec Corp Cold heat cycle apparatus

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5685923A (en) * 1979-12-13 1981-07-13 Matsushita Electric Ind Co Ltd Elastic surface wave transducer
JPS58111666A (ja) * 1981-12-25 1983-07-02 リツチ・プロダクツ・コ−ポレ−シヨン 降下した凍結点を有する改良された果物ジユ−ス
JPS63266912A (ja) * 1987-04-22 1988-11-04 Showa Electric Wire & Cable Co Ltd 弾性表面波装置
JPS63266913A (ja) * 1987-04-22 1988-11-04 Showa Electric Wire & Cable Co Ltd 弾性表面波装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1499330A (en) * 1974-09-26 1978-02-01 Plessey Co Ltd Acoustic surface wave filters
JPS53110349A (en) * 1977-03-08 1978-09-27 Toshiba Corp Elastic surface wave filter device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6466539A (en) * 1987-09-07 1989-03-13 Tabai Espec Corp Cold heat cycle apparatus

Also Published As

Publication number Publication date
JPS5412542A (en) 1979-01-30

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