FR2090687A5 - - Google Patents

Info

Publication number
FR2090687A5
FR2090687A5 FR7114699A FR7114699A FR2090687A5 FR 2090687 A5 FR2090687 A5 FR 2090687A5 FR 7114699 A FR7114699 A FR 7114699A FR 7114699 A FR7114699 A FR 7114699A FR 2090687 A5 FR2090687 A5 FR 2090687A5
Authority
FR
France
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
FR7114699A
Other languages
French (fr)
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.)
Siemens AG
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/en
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of FR2090687A5 publication Critical patent/FR2090687A5/fr
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 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
FR7114699A 1970-04-29 1971-04-26 Expired FR2090687A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702021124 DE2021124C3 (en) 1970-04-29 Piezoelectric filter based on the surface wave principle

Publications (1)

Publication Number Publication Date
FR2090687A5 true FR2090687A5 (en) 1972-01-14

Family

ID=5769849

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7114699A Expired FR2090687A5 (en) 1970-04-29 1971-04-26

Country Status (4)

Country Link
AT (3) AT321367B (en)
FR (1) FR2090687A5 (en)
GB (1) GB1319946A (en)
NL (1) NL7105921A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454223A1 (en) * 1979-04-10 1980-11-07 Telediffusion Fse Surface wave delay line for TV signal de-scrambler - has transducer transmitter radiating wave signals from centre track through couplers to transducer receivers
EP0219182A2 (en) * 1985-10-16 1987-04-22 Unisys Corporation Staggered saw resonator differential detection

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015106191A1 (en) * 2015-04-22 2016-10-27 Epcos Ag Electro-acoustic component with improved acoustics

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454223A1 (en) * 1979-04-10 1980-11-07 Telediffusion Fse Surface wave delay line for TV signal de-scrambler - has transducer transmitter radiating wave signals from centre track through couplers to transducer receivers
EP0219182A2 (en) * 1985-10-16 1987-04-22 Unisys Corporation Staggered saw resonator differential detection
EP0219182A3 (en) * 1985-10-16 1988-02-24 Unisys Corporation Staggered saw resonator differential detection

Also Published As

Publication number Publication date
AT308202B (en) 1973-06-25
NL7105921A (en) 1971-11-02
AT321367B (en) 1975-03-25
GB1319946A (en) 1973-06-13
DE2021124A1 (en) 1971-11-11
AT320744B (en) 1975-02-25
DE2021124B2 (en) 1975-07-31

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Legal Events

Date Code Title Description
ST Notification of lapse