JPS5656024A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS5656024A
JPS5656024A JP13155679A JP13155679A JPS5656024A JP S5656024 A JPS5656024 A JP S5656024A JP 13155679 A JP13155679 A JP 13155679A JP 13155679 A JP13155679 A JP 13155679A JP S5656024 A JPS5656024 A JP S5656024A
Authority
JP
Japan
Prior art keywords
electrode
adjoining
potential
electrode finger
surface wave
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
JP13155679A
Other languages
Japanese (ja)
Other versions
JPS6225288B2 (en
Inventor
Eiji Iegi
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP13155679A priority Critical patent/JPS5656024A/en
Publication of JPS5656024A publication Critical patent/JPS5656024A/en
Publication of JPS6225288B2 publication Critical patent/JPS6225288B2/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 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
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14552—Transducers of particular shape or position comprising split fingers
    • 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
    • H03H9/02818—Means for compensation or elimination of undesirable effects

Landscapes

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

Abstract

PURPOSE:To eliminate the acoustic-velocity difference of a surface wave by making different in length adjoining weighting interditital electrode fingers held at the same potential and by decentralizing the cross-width center part between adjoining different-potential electrode fingers in the length direction of electrode fingers. CONSTITUTION:When electrode 13 is arranged at a certain position, adjoining electrode 14 equal in potential to it is arranged with difference (alpha) in height so that electrodes 13 will be inclined on the whole. Next, electrode finger 15 adjoining to and differing in potential from electrode finger 14 is arranged with cross width al as to electrode finger 14. Further, electrode finger 16 adjoining to and equaling in potential to electrode finger 15 is arranged in the same direction with electrode finger 14 while shift (alpha) is left. Furthermore, electrode fingers 17-24 are similarly arranged successively and electrodes are inclined at a certain angle on the whole eventually. Therefore, the acoustic velocity difference of a surface wave originating from the existence of electrode fingers can be eliminated without exerting any influence on frequency characteristics.
JP13155679A 1979-10-11 1979-10-11 Elastic surface wave device Granted JPS5656024A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13155679A JPS5656024A (en) 1979-10-11 1979-10-11 Elastic surface wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13155679A JPS5656024A (en) 1979-10-11 1979-10-11 Elastic surface wave device

Publications (2)

Publication Number Publication Date
JPS5656024A true JPS5656024A (en) 1981-05-16
JPS6225288B2 JPS6225288B2 (en) 1987-06-02

Family

ID=15060821

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13155679A Granted JPS5656024A (en) 1979-10-11 1979-10-11 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS5656024A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185716A (en) * 1981-05-11 1982-11-16 Nec Corp Surface acoustic wave reed screen shaped converter
JPS5843610A (en) * 1981-09-09 1983-03-14 Toshiba Corp Surface acoustic wave device
JPS5840928U (en) * 1981-09-10 1983-03-17 株式会社東芝 surface acoustic wave filter
JPS63114408A (en) * 1986-10-31 1988-05-19 Toshiba Corp Surface acoustic wave device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5055246A (en) * 1973-08-31 1975-05-15
JPS54146991A (en) * 1978-05-10 1979-11-16 Hitachi Ltd Elastic surface wave device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5055246A (en) * 1973-08-31 1975-05-15
JPS54146991A (en) * 1978-05-10 1979-11-16 Hitachi Ltd Elastic surface wave device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185716A (en) * 1981-05-11 1982-11-16 Nec Corp Surface acoustic wave reed screen shaped converter
JPS5843610A (en) * 1981-09-09 1983-03-14 Toshiba Corp Surface acoustic wave device
JPS5840928U (en) * 1981-09-10 1983-03-17 株式会社東芝 surface acoustic wave filter
JPS63114408A (en) * 1986-10-31 1988-05-19 Toshiba Corp Surface acoustic wave device

Also Published As

Publication number Publication date
JPS6225288B2 (en) 1987-06-02

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