JPS5324250A - Elastic surface wave filter unit - Google Patents

Elastic surface wave filter unit

Info

Publication number
JPS5324250A
JPS5324250A JP9989776A JP9989776A JPS5324250A JP S5324250 A JPS5324250 A JP S5324250A JP 9989776 A JP9989776 A JP 9989776A JP 9989776 A JP9989776 A JP 9989776A JP S5324250 A JPS5324250 A JP S5324250A
Authority
JP
Japan
Prior art keywords
surface wave
elastic surface
filter unit
wave filter
esw
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
JP9989776A
Other languages
Japanese (ja)
Other versions
JPS5834975B2 (en
Inventor
Hiroshi Ikushima
Tsuneo Danno
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 JP9989776A priority Critical patent/JPS5834975B2/en
Publication of JPS5324250A publication Critical patent/JPS5324250A/en
Publication of JPS5834975B2 publication Critical patent/JPS5834975B2/en
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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6403—Programmable filters
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/0296—Surface acoustic wave [SAW] devices having both acoustic and non-acoustic properties
    • H03H9/02968—Surface acoustic wave [SAW] devices having both acoustic and non-acoustic properties with optical devices

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)

Abstract

PURPOSE:To obtain a filter which features various pass characteristics by providing a divided charged electrode type electricity-machine coupler at the intermediate point of the transfer electrode of elastic surface wave ESW.
JP9989776A 1976-08-19 1976-08-19 Surface acoustic wave filter device Expired JPS5834975B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9989776A JPS5834975B2 (en) 1976-08-19 1976-08-19 Surface acoustic wave filter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9989776A JPS5834975B2 (en) 1976-08-19 1976-08-19 Surface acoustic wave filter device

Publications (2)

Publication Number Publication Date
JPS5324250A true JPS5324250A (en) 1978-03-06
JPS5834975B2 JPS5834975B2 (en) 1983-07-30

Family

ID=14259550

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9989776A Expired JPS5834975B2 (en) 1976-08-19 1976-08-19 Surface acoustic wave filter device

Country Status (1)

Country Link
JP (1) JPS5834975B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064382A2 (en) * 1981-04-28 1982-11-10 Fujitsu Limited Surface acoustic wave filter
JPS63213059A (en) * 1987-02-28 1988-09-05 Shinya Fukutomi Common commodity code for pos system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0064382A2 (en) * 1981-04-28 1982-11-10 Fujitsu Limited Surface acoustic wave filter
JPS63213059A (en) * 1987-02-28 1988-09-05 Shinya Fukutomi Common commodity code for pos system

Also Published As

Publication number Publication date
JPS5834975B2 (en) 1983-07-30

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