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AU520925B2 - Acoustic wave devices - Google Patents
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AU520925B2 - Acoustic wave devices - Google Patents

Acoustic wave devices

Info

Publication number
AU520925B2
AU520925B2 AU44529/79A AU4452979A AU520925B2 AU 520925 B2 AU520925 B2 AU 520925B2 AU 44529/79 A AU44529/79 A AU 44529/79A AU 4452979 A AU4452979 A AU 4452979A AU 520925 B2 AU520925 B2 AU 520925B2
Authority
AU
Australia
Prior art keywords
acoustic wave
wave devices
devices
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.)
Ceased
Application number
AU44529/79A
Other versions
AU4452979A (en
Inventor
Richard Frank Mitchell
Martin Redwood
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of AU4452979A publication Critical patent/AU4452979A/en
Application granted granted Critical
Publication of AU520925B2 publication Critical patent/AU520925B2/en
Priority claimed from GB8726378A external-priority patent/GB2204994B/en
Anticipated expiration legal-status Critical
Ceased 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
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6433—Coupled resonator filters

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
AU44529/79A 1978-02-23 1979-02-21 Acoustic wave devices Ceased AU520925B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB726378 1978-02-23
GB8726378A GB2204994B (en) 1987-05-13 1987-11-11 Semiconductor planarization process

Publications (2)

Publication Number Publication Date
AU4452979A AU4452979A (en) 1979-08-30
AU520925B2 true AU520925B2 (en) 1982-03-04

Family

ID=10626767

Family Applications (1)

Application Number Title Priority Date Filing Date
AU44529/79A Ceased AU520925B2 (en) 1978-02-23 1979-02-21 Acoustic wave devices

Country Status (1)

Country Link
AU (1) AU520925B2 (en)

Also Published As

Publication number Publication date
AU4452979A (en) 1979-08-30

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