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GB2160048B - Surface acoustic wave filters - Google Patents

Surface acoustic wave filters

Info

Publication number
GB2160048B
GB2160048B GB08414790A GB8414790A GB2160048B GB 2160048 B GB2160048 B GB 2160048B GB 08414790 A GB08414790 A GB 08414790A GB 8414790 A GB8414790 A GB 8414790A GB 2160048 B GB2160048 B GB 2160048B
Authority
GB
United Kingdom
Prior art keywords
acoustic wave
surface acoustic
wave filters
filters
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.)
Expired
Application number
GB08414790A
Other versions
GB2160048A (en
Inventor
Brian Lewis
Ronald George Arnold
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.)
GE Healthcare UK Ltd
Plessey Co Ltd
Original Assignee
GE Healthcare UK Ltd
Plessey 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 GE Healthcare UK Ltd, Plessey Co Ltd filed Critical GE Healthcare UK Ltd
Priority to GB08414790A priority Critical patent/GB2160048B/en
Priority to DE19853520547 priority patent/DE3520547A1/en
Publication of GB2160048A publication Critical patent/GB2160048A/en
Application granted granted Critical
Publication of GB2160048B publication Critical patent/GB2160048B/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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6489—Compensation of undesirable effects
    • H03H9/6496—Reducing ripple in transfer characteristic
    • 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
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02818—Means for compensation or elimination of undesirable effects
    • H03H9/02842—Means for compensation or elimination of undesirable effects of reflections

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
GB08414790A 1984-06-09 1984-06-09 Surface acoustic wave filters Expired GB2160048B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08414790A GB2160048B (en) 1984-06-09 1984-06-09 Surface acoustic wave filters
DE19853520547 DE3520547A1 (en) 1984-06-09 1985-06-07 FILTER WORKING WITH ACOUSTIC SURFACE WAVES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08414790A GB2160048B (en) 1984-06-09 1984-06-09 Surface acoustic wave filters

Publications (2)

Publication Number Publication Date
GB2160048A GB2160048A (en) 1985-12-11
GB2160048B true GB2160048B (en) 1987-07-22

Family

ID=10562221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08414790A Expired GB2160048B (en) 1984-06-09 1984-06-09 Surface acoustic wave filters

Country Status (2)

Country Link
DE (1) DE3520547A1 (en)
GB (1) GB2160048B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023605A (en) * 1988-11-25 1991-06-11 Gte Laboratories, Inc. Patterned transducer apparatus for correcting spurious signals in said devices
DE19849782B4 (en) * 1998-10-28 2004-09-30 Epcos Ag Surface wave arrangement with at least two surface wave structures

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376572A (en) * 1966-09-15 1968-04-02 Rca Corp Electroacoustic wave shaping device

Also Published As

Publication number Publication date
GB2160048A (en) 1985-12-11
DE3520547A1 (en) 1985-12-12

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Legal Events

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