Nothing Special   »   [go: up one dir, main page]

JPS5713807A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS5713807A
JPS5713807A JP8742580A JP8742580A JPS5713807A JP S5713807 A JPS5713807 A JP S5713807A JP 8742580 A JP8742580 A JP 8742580A JP 8742580 A JP8742580 A JP 8742580A JP S5713807 A JPS5713807 A JP S5713807A
Authority
JP
Japan
Prior art keywords
surface wave
piezoelectric material
material layer
layer
nonpiezoelectric
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
JP8742580A
Other languages
Japanese (ja)
Inventor
Kiyoshi Asakawa
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8742580A priority Critical patent/JPS5713807A/en
Publication of JPS5713807A publication Critical patent/JPS5713807A/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
    • H03H9/02834—Means for compensation or elimination of undesirable effects of temperature influence

Landscapes

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

Abstract

PURPOSE:To improve characteristics by providing a nonpiezoelectric insulator layer in an area of a reed screen type electrode except a piezoelectric material layer in the shape of a weighting function, and by equalizing propagation speed of a surface wave in each area by adjusting the thickness of the piezoelectric layer and insulator layer. CONSTITUTION:On a nonpiezoelectric substrate 21, a reed screen type weighting electrode 22 is formed and on it, a piezoelectric material layer 23 in the shape 25 of a weighting function is further provided. Further, a nonpiezoelectric insulator layer 24 is provided in an area on the electrode 22 except the piezoelectric material layer 23. The thicknesses of the piezoelectric material layer 23 and insulator layer 24 are adjusted to equalize propagation speeds of surface waves. Thus, the distortion of wave surfaces due to the difference in the proparagion speed of the surface wave is eliminated to improve the characteristics of a surface wave device.
JP8742580A 1980-06-27 1980-06-27 Elastic surface wave device Pending JPS5713807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8742580A JPS5713807A (en) 1980-06-27 1980-06-27 Elastic surface wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8742580A JPS5713807A (en) 1980-06-27 1980-06-27 Elastic surface wave device

Publications (1)

Publication Number Publication Date
JPS5713807A true JPS5713807A (en) 1982-01-23

Family

ID=13914511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8742580A Pending JPS5713807A (en) 1980-06-27 1980-06-27 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS5713807A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109959U (en) * 1983-01-13 1984-07-24 株式会社トライテック Piezoelectric acceleration pick-up
JPS6056275U (en) * 1983-09-26 1985-04-19 日産自動車株式会社 multidirectional accelerometer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109959U (en) * 1983-01-13 1984-07-24 株式会社トライテック Piezoelectric acceleration pick-up
JPS6056275U (en) * 1983-09-26 1985-04-19 日産自動車株式会社 multidirectional accelerometer
JPH0230781Y2 (en) * 1983-09-26 1990-08-20

Similar Documents

Publication Publication Date Title
FR2448790A1 (en) VARIABLE SURFACE SOUND WAVE DELAY DEVICES CONTROLLED BY THE CONCENTRATION OF LOAD CARRIERS
JPS5440090A (en) Elastic surface wave resonator element
JPS5713807A (en) Elastic surface wave device
JPS6420714A (en) Surface acoustic wave device
JPS5713802A (en) Elastic surface wave oscillator
JPS55121799A (en) Electroacoustic conversion element
EP0064382A3 (en) Surface acoustic wave filter
DE3679444D1 (en) ACOUSTIC SURFACE WAVE ARRANGEMENT WITH RESISTANT LAYERS.
JPS5232650A (en) Surface elastic wave element
EP0100739A3 (en) Surface acoustic wave device and method of manufacturing said surface acoustic wave device
JPS57181298A (en) Piezoelectric ceramic transducer
JPS5412661A (en) Elastic surface wave element
JPS5789321A (en) Surface acoustic wave device
JPS5469048A (en) Elastic surface wave element
JPS5230361A (en) Frequency adjustment method for elastic surface wave transducer
JPS57162818A (en) Surface acoustic wave device
JPS57155825A (en) Surface wave device
JPS5678220A (en) Elastic surface wave device
JPS5286784A (en) Element for multilayer structure surface elastic waves
JPS5549022A (en) Elastic surface-wave propagation element
JPS5486251A (en) Elatic surface wave device
JPS56138316A (en) Elastic surface wave element
JPS57197908A (en) Surface acoustic wave electrode
JPS5477048A (en) Manufacture of elastic surface wave device
JPS5239390A (en) Temperature compensation type piezoelectric vibrator