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JPS5417647A - Elastic surface wave element - Google Patents

Elastic surface wave element

Info

Publication number
JPS5417647A
JPS5417647A JP8200477A JP8200477A JPS5417647A JP S5417647 A JPS5417647 A JP S5417647A JP 8200477 A JP8200477 A JP 8200477A JP 8200477 A JP8200477 A JP 8200477A JP S5417647 A JPS5417647 A JP S5417647A
Authority
JP
Japan
Prior art keywords
surface wave
elastic surface
wave element
relation
suppressing
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
JP8200477A
Other languages
Japanese (ja)
Other versions
JPS5944802B2 (en
Inventor
Kentaro Hanma
Takeshi Hazama
Hiroaki Nabeyama
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 JP8200477A priority Critical patent/JPS5944802B2/en
Publication of JPS5417647A publication Critical patent/JPS5417647A/en
Publication of JPS5944802B2 publication Critical patent/JPS5944802B2/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
    • H03H9/02—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
    • 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

Landscapes

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

Abstract

PURPOSE:To eliminate the need of an impedance converter circuit for circuit connection, by suppressing a triple transit echo by fixing a relation between the width and interval of electrode fingers in relation to the wavelength of an elastic surface wave.
JP8200477A 1977-07-11 1977-07-11 surface acoustic wave device Expired JPS5944802B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8200477A JPS5944802B2 (en) 1977-07-11 1977-07-11 surface acoustic wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8200477A JPS5944802B2 (en) 1977-07-11 1977-07-11 surface acoustic wave device

Publications (2)

Publication Number Publication Date
JPS5417647A true JPS5417647A (en) 1979-02-09
JPS5944802B2 JPS5944802B2 (en) 1984-11-01

Family

ID=13762372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8200477A Expired JPS5944802B2 (en) 1977-07-11 1977-07-11 surface acoustic wave device

Country Status (1)

Country Link
JP (1) JPS5944802B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201711A (en) * 1984-03-27 1985-10-12 Toshiba Corp Surface acoustic wave device
US4742319A (en) * 1986-06-21 1988-05-03 Alps Electric Co., Ltd. Surface-acoustic-wave resonator
US6075426A (en) * 1998-05-14 2000-06-13 Fujitsu Limited Surface acoustic wave device with an angle α related to specific piezoelectric substrates
EP1143612A1 (en) * 1999-10-18 2001-10-10 Kabushiki Kaisha Toshiba Surface acoustic wave device
US6469598B2 (en) * 2001-03-12 2002-10-22 Matsushita Electric Industrial Co., Ltd. SAW filter with unidirectional transducer and communication apparatus using the same
US6710683B2 (en) * 2001-04-27 2004-03-23 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter and communications apparatus using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60201711A (en) * 1984-03-27 1985-10-12 Toshiba Corp Surface acoustic wave device
US4742319A (en) * 1986-06-21 1988-05-03 Alps Electric Co., Ltd. Surface-acoustic-wave resonator
US6075426A (en) * 1998-05-14 2000-06-13 Fujitsu Limited Surface acoustic wave device with an angle α related to specific piezoelectric substrates
EP1143612A1 (en) * 1999-10-18 2001-10-10 Kabushiki Kaisha Toshiba Surface acoustic wave device
EP1143612A4 (en) * 1999-10-18 2004-10-27 Toshiba Kk Surface acoustic wave device
US6469598B2 (en) * 2001-03-12 2002-10-22 Matsushita Electric Industrial Co., Ltd. SAW filter with unidirectional transducer and communication apparatus using the same
US6710683B2 (en) * 2001-04-27 2004-03-23 Matsushita Electric Industrial Co., Ltd. Surface acoustic wave filter and communications apparatus using the same

Also Published As

Publication number Publication date
JPS5944802B2 (en) 1984-11-01

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