JPS5242391A - Elastic surface wave unit - Google Patents

Elastic surface wave unit

Info

Publication number
JPS5242391A
JPS5242391A JP11798775A JP11798775A JPS5242391A JP S5242391 A JPS5242391 A JP S5242391A JP 11798775 A JP11798775 A JP 11798775A JP 11798775 A JP11798775 A JP 11798775A JP S5242391 A JPS5242391 A JP S5242391A
Authority
JP
Japan
Prior art keywords
surface wave
elastic surface
wave unit
adopting
enable
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
JP11798775A
Other languages
Japanese (ja)
Other versions
JPS555925B2 (en
Inventor
Yoshiharu Saito
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.)
Toko Inc
Original Assignee
Toko Inc
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 Toko Inc filed Critical Toko Inc
Priority to JP11798775A priority Critical patent/JPS5242391A/en
Publication of JPS5242391A publication Critical patent/JPS5242391A/en
Publication of JPS555925B2 publication Critical patent/JPS555925B2/ja
Granted 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 elements; 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
    • H03H9/14517—Means for weighting
    • H03H9/1452—Means for weighting by finger overlap length, apodisation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02992—Details of bus bars, contact pads or other electrical connections for finger electrodes

Landscapes

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

Abstract

PURPOSE:To make the design easier and enable the elastic surface wave with low power loss, by adopting the configuration for at least one of the common electrodes formed on the piezo electric base in accordance with the transmitting function, and by making equal the length of each electrode finger connected to this to each common electrode.
JP11798775A 1975-09-30 1975-09-30 Elastic surface wave unit Granted JPS5242391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11798775A JPS5242391A (en) 1975-09-30 1975-09-30 Elastic surface wave unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11798775A JPS5242391A (en) 1975-09-30 1975-09-30 Elastic surface wave unit

Publications (2)

Publication Number Publication Date
JPS5242391A true JPS5242391A (en) 1977-04-01
JPS555925B2 JPS555925B2 (en) 1980-02-12

Family

ID=14725204

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11798775A Granted JPS5242391A (en) 1975-09-30 1975-09-30 Elastic surface wave unit

Country Status (1)

Country Link
JP (1) JPS5242391A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688223A (en) * 1969-09-17 1972-08-29 Philips Corp Electromechanical filters comprising input-output interdigital electrodes having differing amplitude and frequency characteristics

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3688223A (en) * 1969-09-17 1972-08-29 Philips Corp Electromechanical filters comprising input-output interdigital electrodes having differing amplitude and frequency characteristics

Also Published As

Publication number Publication date
JPS555925B2 (en) 1980-02-12

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