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GB2018081A - Multiphase surface wave transducer - Google Patents

Multiphase surface wave transducer

Info

Publication number
GB2018081A
GB2018081A GB7913502A GB7913502A GB2018081A GB 2018081 A GB2018081 A GB 2018081A GB 7913502 A GB7913502 A GB 7913502A GB 7913502 A GB7913502 A GB 7913502A GB 2018081 A GB2018081 A GB 2018081A
Authority
GB
United Kingdom
Prior art keywords
surface wave
wave transducer
electrodes
multiphase
acoustic wave
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
GB7913502A
Other versions
GB2018081B (en
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.)
General Electric Company PLC
Original Assignee
General Electric Company PLC
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 General Electric Company PLC filed Critical General Electric Company PLC
Priority to GB7913502A priority Critical patent/GB2018081B/en
Publication of GB2018081A publication Critical patent/GB2018081A/en
Application granted granted Critical
Publication of GB2018081B publication Critical patent/GB2018081B/en
Expired 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
    • H03H9/14502—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

An interdigital transducer for use in a surface acoustic wave device comprising three electrodes (A, B and C) whose fingers (1) are arranged so that a unidirectional fundamental frequency acoustic wave is propagated when two exciting signals substantially in quadrature are respectively applied between two electrodes (A and B) and the third electrode (C). <IMAGE>
GB7913502A 1978-02-16 1979-04-18 Multiphase surface wave transducer Expired GB2018081B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7913502A GB2018081B (en) 1978-02-16 1979-04-18 Multiphase surface wave transducer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB618278 1978-02-16
GB7913502A GB2018081B (en) 1978-02-16 1979-04-18 Multiphase surface wave transducer

Publications (2)

Publication Number Publication Date
GB2018081A true GB2018081A (en) 1979-10-10
GB2018081B GB2018081B (en) 1982-06-23

Family

ID=26240497

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7913502A Expired GB2018081B (en) 1978-02-16 1979-04-18 Multiphase surface wave transducer

Country Status (1)

Country Link
GB (1) GB2018081B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584715A (en) * 1983-10-14 1986-04-22 U.S. Philips Corporation Image rejection mixer circuit arrangement
US5000970A (en) * 1989-06-30 1991-03-19 Horizons International Foods, Inc. Process for preparing reheatable french fried potatoes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4584715A (en) * 1983-10-14 1986-04-22 U.S. Philips Corporation Image rejection mixer circuit arrangement
US5000970A (en) * 1989-06-30 1991-03-19 Horizons International Foods, Inc. Process for preparing reheatable french fried potatoes

Also Published As

Publication number Publication date
GB2018081B (en) 1982-06-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee