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FR2412984A1 - Acoustic surface wave device - has converter with overlapping sections and has two collector conductors with sections oblique to propagation direction - Google Patents

Acoustic surface wave device - has converter with overlapping sections and has two collector conductors with sections oblique to propagation direction

Info

Publication number
FR2412984A1
FR2412984A1 FR7836393A FR7836393A FR2412984A1 FR 2412984 A1 FR2412984 A1 FR 2412984A1 FR 7836393 A FR7836393 A FR 7836393A FR 7836393 A FR7836393 A FR 7836393A FR 2412984 A1 FR2412984 A1 FR 2412984A1
Authority
FR
France
Prior art keywords
converter
sections
surface wave
wave device
acoustic surface
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.)
Withdrawn
Application number
FR7836393A
Other languages
French (fr)
Inventor
William Seth Drummond
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.)
Tektronix Inc
Original Assignee
Tektronix Inc
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 Tektronix Inc filed Critical Tektronix Inc
Publication of FR2412984A1 publication Critical patent/FR2412984A1/en
Withdrawn legal-status Critical Current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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6489—Compensation of undesirable effects
    • 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)

Abstract

The acoustic surface wave device consists of a piezoelectric substrate with a converter on one of the surfaces. The converter consists of parallel electrode elements with overlapping sections. The surface wave is propagated through the converter in accordance with an evaluation function. There are two collector conductors (24, 25) on opposite sides of the converter (12). They have a section running oblique to the direction of propagation. This section is joined to the terminal elements of a group at the points of overlap.
FR7836393A 1977-12-21 1978-12-19 Acoustic surface wave device - has converter with overlapping sections and has two collector conductors with sections oblique to propagation direction Withdrawn FR2412984A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86271477A 1977-12-21 1977-12-21

Publications (1)

Publication Number Publication Date
FR2412984A1 true FR2412984A1 (en) 1979-07-20

Family

ID=25339133

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7836393A Withdrawn FR2412984A1 (en) 1977-12-21 1978-12-19 Acoustic surface wave device - has converter with overlapping sections and has two collector conductors with sections oblique to propagation direction

Country Status (4)

Country Link
JP (1) JPS5487495A (en)
DE (1) DE2854072A1 (en)
FR (1) FR2412984A1 (en)
NL (1) NL7810674A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054988A1 (en) * 1980-12-19 1982-06-30 Philips Electronics Uk Limited Acoustic wave devices

Families Citing this family (4)

* 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
GB2132844A (en) * 1982-12-22 1984-07-11 Philips Electronic Associated Surface acoustic wave device
JPS63266912A (en) * 1987-04-22 1988-11-04 Showa Electric Wire & Cable Co Ltd Surface acoustic wave device
JPS63266913A (en) * 1987-04-22 1988-11-04 Showa Electric Wire & Cable Co Ltd Surface acoustic wave device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2281005A1 (en) * 1974-08-02 1976-02-27 Philips Nv FILTER TAKING ADVANTAGE OF ACOUSTIC SURFACE WAVES
DE2542854A1 (en) * 1974-09-26 1976-04-15 Plessey Handel Investment Ag ACOUSTIC SURFACE WAVE FILTER
FR2321802A1 (en) * 1975-08-18 1977-03-18 Philips Nv FILTER TAKING ADVANTAGE OF ACOUSTIC SURFACE WAVES
FR2363230A1 (en) * 1976-08-24 1978-03-24 Tokyo Shibaura Electric Co ELASTIC SURFACE WAVE DEVICE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58204B2 (en) * 1974-11-07 1983-01-05 株式会社東芝 Dansei Hiyoumenhasouchi

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2281005A1 (en) * 1974-08-02 1976-02-27 Philips Nv FILTER TAKING ADVANTAGE OF ACOUSTIC SURFACE WAVES
DE2542854A1 (en) * 1974-09-26 1976-04-15 Plessey Handel Investment Ag ACOUSTIC SURFACE WAVE FILTER
FR2321802A1 (en) * 1975-08-18 1977-03-18 Philips Nv FILTER TAKING ADVANTAGE OF ACOUSTIC SURFACE WAVES
FR2363230A1 (en) * 1976-08-24 1978-03-24 Tokyo Shibaura Electric Co ELASTIC SURFACE WAVE DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054988A1 (en) * 1980-12-19 1982-06-30 Philips Electronics Uk Limited Acoustic wave devices

Also Published As

Publication number Publication date
DE2854072A1 (en) 1979-07-12
NL7810674A (en) 1979-06-25
JPS5487495A (en) 1979-07-11

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Legal Events

Date Code Title Description
ST Notification of lapse