JPS5412543A - Elastic surface wave unit - Google Patents

Elastic surface wave unit

Info

Publication number
JPS5412543A
JPS5412543A JP7652977A JP7652977A JPS5412543A JP S5412543 A JPS5412543 A JP S5412543A JP 7652977 A JP7652977 A JP 7652977A JP 7652977 A JP7652977 A JP 7652977A JP S5412543 A JPS5412543 A JP S5412543A
Authority
JP
Japan
Prior art keywords
elastic surface
surface wave
wave unit
screen electrodes
reed screen
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
JP7652977A
Other languages
Japanese (ja)
Other versions
JPS5835402B2 (en
Inventor
Jun Yamada
Takeshi Hazama
Yoshitsugu Miura
Yoshihiko Noro
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 JP52076529A priority Critical patent/JPS5835402B2/en
Publication of JPS5412543A publication Critical patent/JPS5412543A/en
Publication of JPS5835402B2 publication Critical patent/JPS5835402B2/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

Landscapes

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

Abstract

PURPOSE:To obtain excellent frequency and time axis performance, by rejecting unnecessary signal, through the provision of at least one auxiliary electrode among reed screen electrodes and constituting that the external side of the envelope linking the tips of the reed screen electrodes shows vertical cross section to the direction of propagation for the elastic surface waves and has the electrode of a polarity.
JP52076529A 1977-06-29 1977-06-29 surface acoustic wave device Expired JPS5835402B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52076529A JPS5835402B2 (en) 1977-06-29 1977-06-29 surface acoustic wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52076529A JPS5835402B2 (en) 1977-06-29 1977-06-29 surface acoustic wave device

Publications (2)

Publication Number Publication Date
JPS5412543A true JPS5412543A (en) 1979-01-30
JPS5835402B2 JPS5835402B2 (en) 1983-08-02

Family

ID=13607801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52076529A Expired JPS5835402B2 (en) 1977-06-29 1977-06-29 surface acoustic wave device

Country Status (1)

Country Link
JP (1) JPS5835402B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884517A (en) * 1981-11-16 1983-05-20 Toshiba Corp Surface acoustic wave transducer
JP2008078885A (en) * 2006-09-20 2008-04-03 Matsushita Electric Ind Co Ltd Surface acoustic wave resonator
JP2008078884A (en) * 2006-09-20 2008-04-03 Matsushita Electric Ind Co Ltd Surface acoustic wave resonator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138852A (en) * 1974-08-02 1976-03-31 Philips Nv

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5138852A (en) * 1974-08-02 1976-03-31 Philips Nv

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5884517A (en) * 1981-11-16 1983-05-20 Toshiba Corp Surface acoustic wave transducer
JPH0245364B2 (en) * 1981-11-16 1990-10-09 Tokyo Shibaura Electric Co
JP2008078885A (en) * 2006-09-20 2008-04-03 Matsushita Electric Ind Co Ltd Surface acoustic wave resonator
JP2008078884A (en) * 2006-09-20 2008-04-03 Matsushita Electric Ind Co Ltd Surface acoustic wave resonator

Also Published As

Publication number Publication date
JPS5835402B2 (en) 1983-08-02

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