JPS5478948A - Surface acoustic wave device - Google Patents

Surface acoustic wave device

Info

Publication number
JPS5478948A
JPS5478948A JP14605577A JP14605577A JPS5478948A JP S5478948 A JPS5478948 A JP S5478948A JP 14605577 A JP14605577 A JP 14605577A JP 14605577 A JP14605577 A JP 14605577A JP S5478948 A JPS5478948 A JP S5478948A
Authority
JP
Japan
Prior art keywords
electrode
auxiliary
weighted
acoustic wave
surface acoustic
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
JP14605577A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6145403B2 (enrdf_load_stackoverflow
Inventor
Kazuyuki Nagatsuma
Jun Yamada
Takeshi Hazama
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 JP14605577A priority Critical patent/JPS5478948A/ja
Publication of JPS5478948A publication Critical patent/JPS5478948A/ja
Publication of JPS6145403B2 publication Critical patent/JPS6145403B2/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
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/14547—Fan shaped; Tilted; Shifted; Slanted; Tapered; Arched; Stepped finger transducers
    • 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
    • H03H9/02818—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 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP14605577A 1977-12-07 1977-12-07 Surface acoustic wave device Granted JPS5478948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14605577A JPS5478948A (en) 1977-12-07 1977-12-07 Surface acoustic wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14605577A JPS5478948A (en) 1977-12-07 1977-12-07 Surface acoustic wave device

Publications (2)

Publication Number Publication Date
JPS5478948A true JPS5478948A (en) 1979-06-23
JPS6145403B2 JPS6145403B2 (enrdf_load_stackoverflow) 1986-10-08

Family

ID=15399060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14605577A Granted JPS5478948A (en) 1977-12-07 1977-12-07 Surface acoustic wave device

Country Status (1)

Country Link
JP (1) JPS5478948A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5469359A (en) * 1977-11-14 1979-06-04 Victor Co Of Japan Ltd Elastic surface wave element

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5469359A (en) * 1977-11-14 1979-06-04 Victor Co Of Japan Ltd Elastic surface wave element

Also Published As

Publication number Publication date
JPS6145403B2 (enrdf_load_stackoverflow) 1986-10-08

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