IT956899B - Filtro piezoelettrico che lavora secondo il principio delle onde superficiali - Google Patents

Filtro piezoelettrico che lavora secondo il principio delle onde superficiali

Info

Publication number
IT956899B
IT956899B IT2631072A IT2631072A IT956899B IT 956899 B IT956899 B IT 956899B IT 2631072 A IT2631072 A IT 2631072A IT 2631072 A IT2631072 A IT 2631072A IT 956899 B IT956899 B IT 956899B
Authority
IT
Italy
Prior art keywords
principle
surface waves
works according
piezoelectric filter
piezoelectric
Prior art date
Application number
IT2631072A
Other languages
English (en)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT956899B publication Critical patent/IT956899B/it

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
    • H03H9/46—Filters
    • H03H9/64—Filters using surface acoustic waves
    • H03H9/6423—Means for obtaining a particular transfer characteristic
    • H03H9/6426—Combinations of the characteristics of different transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
IT2631072A 1971-07-02 1972-06-28 Filtro piezoelettrico che lavora secondo il principio delle onde superficiali IT956899B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712132985 DE2132985C3 (de) 1971-07-02 1971-07-02 Piezoelektrisches Filter nach dem Oberflächenwellenprinzip

Publications (1)

Publication Number Publication Date
IT956899B true IT956899B (it) 1973-10-10

Family

ID=5812502

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2631072A IT956899B (it) 1971-07-02 1972-06-28 Filtro piezoelettrico che lavora secondo il principio delle onde superficiali

Country Status (2)

Country Link
DE (1) DE2132985C3 (it)
IT (1) IT956899B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909705C2 (de) * 1979-03-12 1984-09-06 Siemens AG, 1000 Berlin und 8000 München Akustische Oberflächenwellenanordnung
CA1202384A (en) * 1983-12-22 1986-03-25 Grantley O. Este Magnetic feedthrough cancelling surface acoustic wave device
US4539502A (en) * 1983-12-30 1985-09-03 Northern Telecom Limited Magnetic feedthrough cancelling surface acoustic wave device
EP0367864B1 (de) * 1988-11-11 1993-02-17 Siemens Aktiengesellschaft Oberflächenwellenfilter mit änderbarem Durchlassbereich
JPH02189015A (ja) * 1989-01-17 1990-07-25 Clarion Co Ltd 弾性表面波装置
DE19638399C3 (de) * 1996-09-19 2002-04-18 Epcos Ag Oberflächenwellenfilter
GB9622654D0 (en) * 1996-10-31 1997-01-08 Flowers James E Filters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550045A (en) * 1969-06-25 1970-12-22 Zenith Radio Corp Acoustic surface wave filter devices
US3551837A (en) * 1969-08-13 1970-12-29 Us Navy Surface wave transducers with side lobe suppression

Also Published As

Publication number Publication date
DE2132985A1 (de) 1973-01-18
DE2132985B2 (de) 1980-04-03
DE2132985C3 (de) 1981-06-04

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