JPS5715519A - Elastic surface wave device - Google Patents

Elastic surface wave device

Info

Publication number
JPS5715519A
JPS5715519A JP9026980A JP9026980A JPS5715519A JP S5715519 A JPS5715519 A JP S5715519A JP 9026980 A JP9026980 A JP 9026980A JP 9026980 A JP9026980 A JP 9026980A JP S5715519 A JPS5715519 A JP S5715519A
Authority
JP
Japan
Prior art keywords
electrode
elastic surface
surface wave
unidirectional
wave device
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.)
Pending
Application number
JP9026980A
Other languages
Japanese (ja)
Inventor
Kentaro Setsune
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP9026980A priority Critical patent/JPS5715519A/en
Publication of JPS5715519A publication Critical patent/JPS5715519A/en
Pending 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02637—Details concerning reflective or coupling arrays
    • H03H9/02685—Grating lines having particular arrangements
    • H03H9/0274—Intra-transducers grating lines
    • H03H9/02755—Meandering floating or grounded grating lines
    • 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
    • H03H9/14502—Surface acoustic wave [SAW] transducers for a particular purpose
    • H03H9/14508—Polyphase SAW transducers

Landscapes

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

Abstract

PURPOSE:To decrease the electric resistance and to reduce the loss, by providing a unit unidirectional electrode having greater electrode finger width toward the elastic surface wave propagating direction of a common electrode. CONSTITUTION:A width L' of a meander line electrode 8 of a unit unidirectional converter is taken as 3/2 wavelength. Further, the elastic surface wave energizied at electrodes 6, 8 and that energized at electrode 7, 8 are in the same phase relation as conventional devices for the center response frequency, they energize the elastic surface waves in the arrow direction and cancel the opposite direction. Thus, spurious response can be suppressed by locating conventional unidirectional converters at the input side and said unidirectional converter at the output side.
JP9026980A 1980-07-01 1980-07-01 Elastic surface wave device Pending JPS5715519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9026980A JPS5715519A (en) 1980-07-01 1980-07-01 Elastic surface wave device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9026980A JPS5715519A (en) 1980-07-01 1980-07-01 Elastic surface wave device

Publications (1)

Publication Number Publication Date
JPS5715519A true JPS5715519A (en) 1982-01-26

Family

ID=13993780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9026980A Pending JPS5715519A (en) 1980-07-01 1980-07-01 Elastic surface wave device

Country Status (1)

Country Link
JP (1) JPS5715519A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5964910A (en) * 1982-09-07 1984-04-13 シ−メンスアルビス・アクチエンゲゼルシヤフト Surface wave filter
US4642506A (en) * 1983-10-14 1987-02-10 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Surface acoustic wave device with reflectors in inter-electrode location
DE3838383A1 (en) * 1987-11-13 1989-06-01 Hitachi Ltd DEVICE FOR ACOUSTIC SURFACE WAVES WITH OVERLAP-WEIGHTED CONVERTER PROVIDED WITH A GROUP OF ELECTRODES WITH IRREGULAR SPACING
US5010269A (en) * 1987-12-14 1991-04-23 Hitachi, Ltd. SAW resonator having a broad bandwidth

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5964910A (en) * 1982-09-07 1984-04-13 シ−メンスアルビス・アクチエンゲゼルシヤフト Surface wave filter
US4642506A (en) * 1983-10-14 1987-02-10 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Surface acoustic wave device with reflectors in inter-electrode location
DE3838383A1 (en) * 1987-11-13 1989-06-01 Hitachi Ltd DEVICE FOR ACOUSTIC SURFACE WAVES WITH OVERLAP-WEIGHTED CONVERTER PROVIDED WITH A GROUP OF ELECTRODES WITH IRREGULAR SPACING
US5010269A (en) * 1987-12-14 1991-04-23 Hitachi, Ltd. SAW resonator having a broad bandwidth

Similar Documents

Publication Publication Date Title
JPS54844A (en) Elastic surface wave filter
JPS5715519A (en) Elastic surface wave device
JPS5725714A (en) Elastic surface wave converter
JPS5610724A (en) Elastic surface wave transducer
JPS56156015A (en) Elastic surface wave device
JPS5417647A (en) Elastic surface wave element
JPS555573A (en) Surface acoustic wave filter
JPS5566118A (en) Elastic surface wave device
JPS5545284A (en) Slip wave crystal vibration device
JPS53110349A (en) Elastic surface wave filter device
JPS6484909A (en) Surface acoustic wave device
JPS5762616A (en) Filter circuit using surface acoustic wave filter
JPS5527769A (en) Elastic surface wave converter
JPS5518141A (en) Elastic surface wave device
GB2018081A (en) Multiphase surface wave transducer
JPS52104837A (en) Inductance element of filter blocking carrier wave in power line
JPS5549021A (en) Elastic surface-wave unit
JPS57207411A (en) Surface acoustic wave device
JPS5750118A (en) Surface acoustic wave device
JPS57155825A (en) Surface wave device
JPS5368054A (en) Elastic surface wave filter
JPS57129510A (en) Surface acoustic wave device
JPS5558614A (en) Elastic surface wave device
JPS56166619A (en) Elastic surface wave device
JPS56103518A (en) Electrode for elastic surface wave element