JPH0214811B2 - - Google Patents

Info

Publication number
JPH0214811B2
JPH0214811B2 JP6238480A JP6238480A JPH0214811B2 JP H0214811 B2 JPH0214811 B2 JP H0214811B2 JP 6238480 A JP6238480 A JP 6238480A JP 6238480 A JP6238480 A JP 6238480A JP H0214811 B2 JPH0214811 B2 JP H0214811B2
Authority
JP
Japan
Prior art keywords
electrodes
electrode
unit
surface acoustic
comb
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.)
Expired
Application number
JP6238480A
Other languages
English (en)
Japanese (ja)
Other versions
JPS56158519A (en
Inventor
Koichi Nishimura
Yutaka Abe
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.)
Maruyasu Industries Co Ltd
Original Assignee
Maruyasu Industries 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 Maruyasu Industries Co Ltd filed Critical Maruyasu Industries Co Ltd
Priority to JP6238480A priority Critical patent/JPS56158519A/ja
Publication of JPS56158519A publication Critical patent/JPS56158519A/ja
Publication of JPH0214811B2 publication Critical patent/JPH0214811B2/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
    • H03H9/14573—Arrow type 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
    • H03H9/125—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
    • 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
    • H03H9/14576—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger
    • H03H9/14579—Transducers whereby only the last fingers have different characteristics with respect to the other fingers, e.g. different shape, thickness or material, split finger the last fingers having a different shape
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
JP6238480A 1980-05-10 1980-05-10 Elastic surface wave device Granted JPS56158519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6238480A JPS56158519A (en) 1980-05-10 1980-05-10 Elastic surface wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6238480A JPS56158519A (en) 1980-05-10 1980-05-10 Elastic surface wave device

Publications (2)

Publication Number Publication Date
JPS56158519A JPS56158519A (en) 1981-12-07
JPH0214811B2 true JPH0214811B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-04-10

Family

ID=13198569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6238480A Granted JPS56158519A (en) 1980-05-10 1980-05-10 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS56158519A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120890B (en) * 1982-04-19 1985-11-27 Philips Electronic Associated Acoustic surface wave device
JPH036114A (ja) * 1989-06-01 1991-01-11 Mitsubishi Electric Corp 弾性表面波装置

Also Published As

Publication number Publication date
JPS56158519A (en) 1981-12-07

Similar Documents

Publication Publication Date Title
US4023124A (en) Acoustic surface wave devices
US3980904A (en) Elastic surface wave device
JPS62188512A (ja) 表面弾性波共振器、表面弾性波共振器フイルタおよびこれらの製造方法
US4307356A (en) Surface acoustic wave device
JPS6363128B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP0044732B1 (en) Acoustic surface wave transducer with improved inband frequency characteristics
JP6178972B2 (ja) ローパス特性を有する電子音響フィルタ
US4205285A (en) Acoustic surface wave device
US4642507A (en) Saw devices with reflection-suppressing fingers
JPH0214811B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS63215108A (ja) 表面弾性波装置
JPH0410764B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP2628985B2 (ja) 改良された表面音波フィルタ
JPH026670Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US4185218A (en) Piezoelectric acoustic surface wave filter coupler
US4965480A (en) Surface acoustic wave convolver with two output electrodes of different lengths
JP3432323B2 (ja) Ｓａｗデバイス
US4258342A (en) Elastic surface wave device
JPS5855692Y2 (ja) 表面波フイルタ
JPS6134755Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP2590347B2 (ja) 弾性表面波装置
JPH0241925B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JPS6130338Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US5808524A (en) Surface wave filter with a specified transducer impulse train that reduces diffraction
JPS60256214A (ja) 弾性波装置