JPS56123118A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS56123118A
JPS56123118A JP2827480A JP2827480A JPS56123118A JP S56123118 A JPS56123118 A JP S56123118A JP 2827480 A JP2827480 A JP 2827480A JP 2827480 A JP2827480 A JP 2827480A JP S56123118 A JPS56123118 A JP S56123118A
Authority
JP
Japan
Prior art keywords
electrode
couples
partial
common part
attenuation
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
JP2827480A
Other languages
Japanese (ja)
Other versions
JPH038122B2 (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 JP2827480A priority Critical patent/JPS56123118A/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 JPS56123118A publication Critical patent/JPS56123118A/en
Publication of JPH038122B2 publication Critical patent/JPH038122B2/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

Landscapes

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

Abstract

PURPOSE:To increase attenuation at both sides of a passing band by setting the capacities of two electrodes of an interdigital electrode, having a small number of couples divided into two and connected electrically in series, at the best ratio. CONSTITUTION:Electrode 1 which has a relatively small number of couples, such as 5-20 couples, and is equal in cross width, is divided into two parts, partial electrodes 4 and 5, at division part 1a. Common part 4b of partial electrode 4 and common part 5b of partial electrode 5 serve as terminals of interdigital electrode 1, and common part 4b is grounded. When the capacity of electrode 4 is denoted as C1 and that of electrode 5 as C2, setting (C2/C1) to 1.03-1.45 improves attenuation at attenuation position which are at both sides of the passing band.
JP2827480A 1979-04-24 1980-03-05 Elastic surface wave device Granted JPS56123118A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2827480A JPS56123118A (en) 1980-03-05 1980-03-05 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
JP2827480A JPS56123118A (en) 1980-03-05 1980-03-05 Elastic surface wave device

Publications (2)

Publication Number Publication Date
JPS56123118A true JPS56123118A (en) 1981-09-28
JPH038122B2 JPH038122B2 (en) 1991-02-05

Family

ID=12244000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2827480A Granted JPS56123118A (en) 1979-04-24 1980-03-05 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS56123118A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8210349B2 (en) 2003-03-25 2012-07-03 Arkray, Inc. Sensor storage container

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389643A (en) * 1976-09-03 1978-08-07 Murata Manufacturing Co Elastic surface wave device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5389643A (en) * 1976-09-03 1978-08-07 Murata Manufacturing Co Elastic surface wave device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8210349B2 (en) 2003-03-25 2012-07-03 Arkray, Inc. Sensor storage container

Also Published As

Publication number Publication date
JPH038122B2 (en) 1991-02-05

Similar Documents

Publication Publication Date Title
DE2962940D1 (en) Electrically variable impedance circuit
GB2066601B (en) Electrically variable impedance circuit with feedback comppensation
JPS5616314A (en) Surface elastic wave filter
JPS56123118A (en) Elastic surface wave device
JPS574613A (en) Elastic surface wave device
JPS52131200A (en) Electric wave absorber
JPS56132807A (en) Surface wave circuit equipment
JPS5643818A (en) Surface elastic wave device and its manufacture
GB2126411B (en) Electrode terminal contact
JPS555573A (en) Surface acoustic wave filter
JPS52136542A (en) Elastic surface wave filter
JPS56141613A (en) Surface wave equipment
JPS5765917A (en) Surface acoustic wave device
JPS56123117A (en) Elastic surface wave device
JPS5694814A (en) Elastic surface wave device
JPS5672515A (en) Elastic surface wave device
JPS53110349A (en) Elastic surface wave filter device
JPS55141813A (en) Surface acoustic wave device
JPS57129514A (en) Coupler of surface acoustic wave
JPS56128011A (en) Surface elastic wave filter
JPS5658312A (en) Elastic surface wave device
JPS57129512A (en) Surface acoustic wave element
JPS56141614A (en) Surface wave equipment
JPS5264255A (en) Elastic surface wave type filter
JPS53136460A (en) Unit for elastic surface wave