AT308202B - Piezoelektrisches Filter nach dem Oberflächenwellenprinzip - Google Patents

Piezoelektrisches Filter nach dem Oberflächenwellenprinzip

Info

Publication number
AT308202B
AT308202B AT249771A AT249771A AT308202B AT 308202 B AT308202 B AT 308202B AT 249771 A AT249771 A AT 249771A AT 249771 A AT249771 A AT 249771A AT 308202 B AT308202 B AT 308202B
Authority
AT
Austria
Prior art keywords
surface wave
filter based
piezoelectric filter
wave principle
principle
Prior art date
Application number
AT249771A
Other languages
German (de)
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
Priority claimed from DE19702021124 external-priority patent/DE2021124C3/de
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT308202B publication Critical patent/AT308202B/de

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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 devices; Electromechanical resonators
    • H03H9/02—Details
    • H03H9/02535—Details of surface acoustic wave devices
    • H03H9/02614—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves
    • H03H9/02622—Treatment of substrates, e.g. curved, spherical, cylindrical substrates ensuring closed round-about circuits for the acoustical waves of the surface, including back surface
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; 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
    • H03H9/14544—Transducers of particular shape or position
    • H03H9/1455—Transducers of particular shape or position constituted of N parallel or series transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
AT249771A 1970-04-29 1971-03-23 Piezoelektrisches Filter nach dem Oberflächenwellenprinzip AT308202B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702021124 DE2021124C3 (de) 1970-04-29 Piezoelektrisches Filter nach dem Oberfl ächen wellenprinzip

Publications (1)

Publication Number Publication Date
AT308202B true AT308202B (de) 1973-06-25

Family

ID=5769849

Family Applications (3)

Application Number Title Priority Date Filing Date
AT348772A AT320744B (de) 1970-04-29 1971-03-23 Piezoelektrisches Filter nach dem Oberflächenwellenprinzip
AT249771A AT308202B (de) 1970-04-29 1971-03-23 Piezoelektrisches Filter nach dem Oberflächenwellenprinzip
AT348672A AT321367B (de) 1970-04-29 1971-03-23 Piezoelektrisches Filter nach dem Oberflächenwellenprinzip

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT348772A AT320744B (de) 1970-04-29 1971-03-23 Piezoelektrisches Filter nach dem Oberflächenwellenprinzip

Family Applications After (1)

Application Number Title Priority Date Filing Date
AT348672A AT321367B (de) 1970-04-29 1971-03-23 Piezoelektrisches Filter nach dem Oberflächenwellenprinzip

Country Status (4)

Country Link
AT (3) AT320744B (xx)
FR (1) FR2090687A5 (xx)
GB (1) GB1319946A (xx)
NL (1) NL7105921A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454223B1 (fr) * 1979-04-10 1986-11-28 Telediffusion Fse Dispositif a ondes elastiques de surface pour circuit de brouillage ou de debrouillage d'emissions de television
US4609891A (en) * 1985-10-16 1986-09-02 Sperry Corporation Staggered SAW resonator for differential detection
DE102015106191A1 (de) * 2015-04-22 2016-10-27 Epcos Ag Elektroakustisches Bauelement mit verbesserter Akustik

Also Published As

Publication number Publication date
AT321367B (de) 1975-03-25
NL7105921A (xx) 1971-11-02
DE2021124B2 (de) 1975-07-31
DE2021124A1 (de) 1971-11-11
AT320744B (de) 1975-02-25
FR2090687A5 (xx) 1972-01-14
GB1319946A (en) 1973-06-13

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Legal Events

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