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JPS5672515A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS5672515A
JPS5672515A JP14935279A JP14935279A JPS5672515A JP S5672515 A JPS5672515 A JP S5672515A JP 14935279 A JP14935279 A JP 14935279A JP 14935279 A JP14935279 A JP 14935279A JP S5672515 A JPS5672515 A JP S5672515A
Authority
JP
Japan
Prior art keywords
electrode
capacity
voltage
electrodes
partial
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
JP14935279A
Other languages
Japanese (ja)
Other versions
JPS6161574B2 (en
Inventor
Michio Kadota
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing 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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP14935279A priority Critical patent/JPS5672515A/en
Priority to US06/141,369 priority patent/US4384264A/en
Priority to DE19803015241 priority patent/DE3015241A1/en
Priority to GB8013177A priority patent/GB2047034B/en
Publication of JPS5672515A publication Critical patent/JPS5672515A/en
Publication of JPS6161574B2 publication Critical patent/JPS6161574B2/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 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
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series transducers

Landscapes

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

Abstract

PURPOSE:To reduce the capacity, taking enough large the attenuation of attenuation pole in the frequency characteristic, by forming the pattern of one electrode so that it can be related with the capacity by plural divided partial electrodes. CONSTITUTION:The capacity by the partial electrode 5 is that which is formed between only one pair of the comb-tooth electrodes 9, 10, and it is made C1. Also, the capacities by the partial electrodes 6, 7, 8 are made C2, C3 and C4, respectively. The electrode pattern is selected so that said capacities C1, C2, C3, C4 become a relation of C1<=C2<=C3<=C4 (provided that C1=C2=C3=C4 is excluded). And when voltage V is applied between the terminals 14, 15, the voltage of approx imately V/4 is applied to the partial electrodes 5, 6, 7, 8, respectively, and voltage applied between each adjacent electrode arm becomes equal. The frequency characteristic is not deteriorated by dividing the electrode at this time.
JP14935279A 1979-04-24 1979-11-16 Elastic surface wave device Granted JPS5672515A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP14935279A JPS5672515A (en) 1979-11-16 1979-11-16 Elastic surface wave device
US06/141,369 US4384264A (en) 1979-04-24 1980-04-18 Surface acoustic wave device
DE19803015241 DE3015241A1 (en) 1979-04-24 1980-04-21 COMPONENT FOR ACOUSTIC SURFACE WAVES
GB8013177A GB2047034B (en) 1979-04-24 1980-04-22 Surface acoustic wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14935279A JPS5672515A (en) 1979-11-16 1979-11-16 Elastic surface wave device

Publications (2)

Publication Number Publication Date
JPS5672515A true JPS5672515A (en) 1981-06-16
JPS6161574B2 JPS6161574B2 (en) 1986-12-26

Family

ID=15473240

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14935279A Granted JPS5672515A (en) 1979-04-24 1979-11-16 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS5672515A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01222293A (en) * 1988-03-01 1989-09-05 Matsushita Electric Ind Co Ltd Display device
JPH0425381U (en) * 1990-06-21 1992-02-28

Also Published As

Publication number Publication date
JPS6161574B2 (en) 1986-12-26

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