JPS5642419A - Surface elastic wave resonator - Google Patents

Surface elastic wave resonator

Info

Publication number
JPS5642419A
JPS5642419A JP11676979A JP11676979A JPS5642419A JP S5642419 A JPS5642419 A JP S5642419A JP 11676979 A JP11676979 A JP 11676979A JP 11676979 A JP11676979 A JP 11676979A JP S5642419 A JPS5642419 A JP S5642419A
Authority
JP
Japan
Prior art keywords
surface elastic
elastic wave
stripes
lambdar
reflector
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
JP11676979A
Other languages
Japanese (ja)
Other versions
JPS5915564B2 (en
Inventor
Yasuo Ehata
Koji Sato
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 JP11676979A priority Critical patent/JPS5915564B2/en
Publication of JPS5642419A publication Critical patent/JPS5642419A/en
Publication of JPS5915564B2 publication Critical patent/JPS5915564B2/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
    • H03H9/25—Constructional features of resonators using surface acoustic waves

Landscapes

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

Abstract

PURPOSE:To reduce manufacture variations of the resonance frequency and center frequency of a filter, etc., by constituting a reflector for a surface elastic wave by selectively bonding an aluminum film on a substrate and by causing acoustic reflection of the surface elastic wave. CONSTITUTION:On lithium tantalate substrate 7, input-output transducers 8 are formed at a proper interval to permit a surface elastic wave to propagate and between input-output transducers 8, concave reflecting stripes 9 are provided by photoetching an aluminum film. Those stripes 9 are arranged at intervals one fourth surface elastic wavelength lambdaR while the repetitive intervals are a half lambdaR and three fourths only at the center part. While reflection at the end part of each stripe 9 is made possible by fixing the number of stripes 9, the reflector for surface waves is constituted to reduce manufacture variations of the resonance frequency and center frequency of the filter.
JP11676979A 1979-09-13 1979-09-13 surface acoustic wave resonator Expired JPS5915564B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11676979A JPS5915564B2 (en) 1979-09-13 1979-09-13 surface acoustic wave resonator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11676979A JPS5915564B2 (en) 1979-09-13 1979-09-13 surface acoustic wave resonator

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP28195686A Division JPS62271514A (en) 1986-11-28 1986-11-28 Surface acoustic wave resonator

Publications (2)

Publication Number Publication Date
JPS5642419A true JPS5642419A (en) 1981-04-20
JPS5915564B2 JPS5915564B2 (en) 1984-04-10

Family

ID=14695265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11676979A Expired JPS5915564B2 (en) 1979-09-13 1979-09-13 surface acoustic wave resonator

Country Status (1)

Country Link
JP (1) JPS5915564B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56125631U (en) * 1980-02-27 1981-09-24
JPS61171211A (en) * 1985-01-22 1986-08-01 シーメンス、アクチエンゲゼルシヤフト Electric filter actuated by sound wave
US10559736B2 (en) 2014-07-02 2020-02-11 Kelk Ltd. Thermoelectric generator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56125631U (en) * 1980-02-27 1981-09-24
JPS61171211A (en) * 1985-01-22 1986-08-01 シーメンス、アクチエンゲゼルシヤフト Electric filter actuated by sound wave
US10559736B2 (en) 2014-07-02 2020-02-11 Kelk Ltd. Thermoelectric generator

Also Published As

Publication number Publication date
JPS5915564B2 (en) 1984-04-10

Similar Documents

Publication Publication Date Title
US4144507A (en) Surface acoustic wave resonator incorporating coupling transducer into reflecting arrays
GB1533153A (en) Multi-resonant surface wave resonator
US3970970A (en) Multiple acoustically coupled surface acoustic wave resonators
GB1513911A (en) Acoustic surface wave resonator devices
US4249146A (en) Surface acoustic wave resonators utilizing harmonic frequencies
US3663899A (en) Surface-wave electro-acoustic filter
US4340834A (en) Surface acoustic wave resonator device
GB1513466A (en) Acoustic surface wave devices
JPH0231889B2 (en)
JPS5642419A (en) Surface elastic wave resonator
JPS568914A (en) Low-frequency dispersed type delay line
JP2725697B2 (en) Surface acoustic wave device
JPS6247206A (en) Surface acoustic wave multimode filter
ATE4077T1 (en) ACOUSTIC WAVE FILTER.
TW263630B (en) Surface wave resonator
JP3203796B2 (en) Multi-mode surface acoustic wave filter
GB1526380A (en) Elastic bulk wave frequency filter
JPS5717217A (en) Cavity type elastic surface wave resonator
JPS61281612A (en) Surface acoustic wave resonator
JPS60263505A (en) Elastic surface wave reflector and resonator having positive and negative reflection coefficients
JPS5884517A (en) Surface acoustic wave transducer
JPS5678222A (en) Elastic surface wave comb line filter
JPS58145215A (en) Surface acoustic wave device
JPS59214315A (en) Elastic surface wave device
JPS594886B2 (en) surface acoustic wave filter