JPS51142943A - Elastic surface-wave filter - Google Patents

Elastic surface-wave filter

Info

Publication number
JPS51142943A
JPS51142943A JP6735875A JP6735875A JPS51142943A JP S51142943 A JPS51142943 A JP S51142943A JP 6735875 A JP6735875 A JP 6735875A JP 6735875 A JP6735875 A JP 6735875A JP S51142943 A JPS51142943 A JP S51142943A
Authority
JP
Japan
Prior art keywords
wave filter
elastic surface
elastic
blocked
frequency
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
JP6735875A
Other languages
Japanese (ja)
Other versions
JPS566723B2 (en
Inventor
Shuji Urabe
Fujio Ishihara
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.)
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP6735875A priority Critical patent/JPS51142943A/en
Publication of JPS51142943A publication Critical patent/JPS51142943A/en
Publication of JPS566723B2 publication Critical patent/JPS566723B2/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
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series 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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6426—Combinations of the characteristics of different transducers

Landscapes

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

Abstract

PURPOSE:To obtain a relatively wide block band including the frequency to be blocked.
JP6735875A 1975-06-03 1975-06-03 Elastic surface-wave filter Granted JPS51142943A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6735875A JPS51142943A (en) 1975-06-03 1975-06-03 Elastic surface-wave filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6735875A JPS51142943A (en) 1975-06-03 1975-06-03 Elastic surface-wave filter

Publications (2)

Publication Number Publication Date
JPS51142943A true JPS51142943A (en) 1976-12-08
JPS566723B2 JPS566723B2 (en) 1981-02-13

Family

ID=13342699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6735875A Granted JPS51142943A (en) 1975-06-03 1975-06-03 Elastic surface-wave filter

Country Status (1)

Country Link
JP (1) JPS51142943A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03190313A (en) * 1989-12-20 1991-08-20 Hitachi Ltd surface acoustic wave device
EP0637873A3 (en) * 1993-08-04 1995-07-05 Advanced Saw Prod Sa SAW filter.
EP0612146A3 (en) * 1993-02-16 1995-09-20 Motorola Inc Conjugately matched acoustic wave transducers and method.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51114939U (en) * 1975-03-13 1976-09-17

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51114939U (en) * 1975-03-13 1976-09-17

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03190313A (en) * 1989-12-20 1991-08-20 Hitachi Ltd surface acoustic wave device
EP0612146A3 (en) * 1993-02-16 1995-09-20 Motorola Inc Conjugately matched acoustic wave transducers and method.
EP0637873A3 (en) * 1993-08-04 1995-07-05 Advanced Saw Prod Sa SAW filter.

Also Published As

Publication number Publication date
JPS566723B2 (en) 1981-02-13

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