JPS5440541A - Propagation element for elastic surface wave - Google Patents

Propagation element for elastic surface wave

Info

Publication number
JPS5440541A
JPS5440541A JP10660477A JP10660477A JPS5440541A JP S5440541 A JPS5440541 A JP S5440541A JP 10660477 A JP10660477 A JP 10660477A JP 10660477 A JP10660477 A JP 10660477A JP S5440541 A JPS5440541 A JP S5440541A
Authority
JP
Japan
Prior art keywords
surface wave
elastic surface
propagation element
thin film
metal thin
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.)
Pending
Application number
JP10660477A
Other languages
Japanese (ja)
Inventor
Yoshitsugu Miura
Hisao Yamauchi
Katsumi Miyauchi
Sakichi Ashida
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 JP10660477A priority Critical patent/JPS5440541A/en
Publication of JPS5440541A publication Critical patent/JPS5440541A/en
Pending 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02913—Measures for shielding against electromagnetic fields
    • 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
    • H03H9/02543—Characteristics of substrate, e.g. cutting angles
    • H03H9/02574—Characteristics of substrate, e.g. cutting angles of combined substrates, multilayered substrates, piezoelectrical layers on not-piezoelectrical substrate

Landscapes

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

Abstract

PURPOSE:To improve filter characteristics by dividing a metal thin film into three and by grounding more than one metal thin film which is not above reed screen form electrodes.
JP10660477A 1977-09-07 1977-09-07 Propagation element for elastic surface wave Pending JPS5440541A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10660477A JPS5440541A (en) 1977-09-07 1977-09-07 Propagation element for elastic surface wave

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10660477A JPS5440541A (en) 1977-09-07 1977-09-07 Propagation element for elastic surface wave

Publications (1)

Publication Number Publication Date
JPS5440541A true JPS5440541A (en) 1979-03-30

Family

ID=14437719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10660477A Pending JPS5440541A (en) 1977-09-07 1977-09-07 Propagation element for elastic surface wave

Country Status (1)

Country Link
JP (1) JPS5440541A (en)

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