JPS5412661A - Elastic surface wave element - Google Patents

Elastic surface wave element

Info

Publication number
JPS5412661A
JPS5412661A JP7713477A JP7713477A JPS5412661A JP S5412661 A JPS5412661 A JP S5412661A JP 7713477 A JP7713477 A JP 7713477A JP 7713477 A JP7713477 A JP 7713477A JP S5412661 A JPS5412661 A JP S5412661A
Authority
JP
Japan
Prior art keywords
surface wave
wave element
elastic surface
impairing
installing
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
JP7713477A
Other languages
Japanese (ja)
Inventor
Kiyoshi 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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7713477A priority Critical patent/JPS5412661A/en
Publication of JPS5412661A publication Critical patent/JPS5412661A/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
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections

Abstract

PURPOSE:To improve the electric characteristics without impairing the sound absorbing effect by installing a sound absorber of a fixed thickness onto the surface wave propagation substrate.
JP7713477A 1977-06-30 1977-06-30 Elastic surface wave element Pending JPS5412661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7713477A JPS5412661A (en) 1977-06-30 1977-06-30 Elastic surface wave element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7713477A JPS5412661A (en) 1977-06-30 1977-06-30 Elastic surface wave element

Publications (1)

Publication Number Publication Date
JPS5412661A true JPS5412661A (en) 1979-01-30

Family

ID=13625324

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7713477A Pending JPS5412661A (en) 1977-06-30 1977-06-30 Elastic surface wave element

Country Status (1)

Country Link
JP (1) JPS5412661A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833134A (en) * 1981-08-21 1983-02-26 Mitsubishi Electric Corp Monitoring device for bearing temperature
US4642507A (en) * 1985-03-29 1987-02-10 Northern Telecom Limited Saw devices with reflection-suppressing fingers
US4684841A (en) * 1985-04-01 1987-08-04 Northern Telecom Limited Saw devices including resistive films
JPS63252518A (en) * 1987-04-09 1988-10-19 Ngk Insulators Ltd Rotary disc type separator
JPS63252519A (en) * 1987-04-09 1988-10-19 Ngk Insulators Ltd Rotary disc type separation device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147687A (en) * 1974-05-15 1975-11-26
JPS5260547A (en) * 1975-11-14 1977-05-19 Toshiba Corp Elastic surface wave absorber
JPS5270354A (en) * 1975-12-09 1977-06-11 Murata Manufacturing Co Method of laminateddceramic capacitor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50147687A (en) * 1974-05-15 1975-11-26
JPS5260547A (en) * 1975-11-14 1977-05-19 Toshiba Corp Elastic surface wave absorber
JPS5270354A (en) * 1975-12-09 1977-06-11 Murata Manufacturing Co Method of laminateddceramic capacitor

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5833134A (en) * 1981-08-21 1983-02-26 Mitsubishi Electric Corp Monitoring device for bearing temperature
US4642507A (en) * 1985-03-29 1987-02-10 Northern Telecom Limited Saw devices with reflection-suppressing fingers
US4684841A (en) * 1985-04-01 1987-08-04 Northern Telecom Limited Saw devices including resistive films
JPS63252518A (en) * 1987-04-09 1988-10-19 Ngk Insulators Ltd Rotary disc type separator
JPS63252519A (en) * 1987-04-09 1988-10-19 Ngk Insulators Ltd Rotary disc type separation device

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