FR1210238A - Filtre piézoélectrique - Google Patents

Filtre piézoélectrique

Info

Publication number
FR1210238A
FR1210238A FR1210238DA FR1210238A FR 1210238 A FR1210238 A FR 1210238A FR 1210238D A FR1210238D A FR 1210238DA FR 1210238 A FR1210238 A FR 1210238A
Authority
FR
France
Prior art keywords
piezoelectric filter
piezoelectric
filter
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
Other languages
English (en)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR1210238A publication Critical patent/FR1210238A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/40—Piezoelectric or electrostrictive devices with electrical input and electrical output, e.g. functioning as transformers
    • 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
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/542—Filters comprising resonators of piezoelectric or electrostrictive material including passive elements
    • 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
    • H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
    • H03H9/58—Multiple crystal filters
    • H03H9/60—Electric coupling means therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
FR1210238D 1957-09-12 1958-09-12 Filtre piézoélectrique Expired FR1210238A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US683486A US2988714A (en) 1957-09-12 1957-09-12 Piezoelectric filter network

Publications (1)

Publication Number Publication Date
FR1210238A true FR1210238A (fr) 1960-03-07

Family

ID=24744255

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1210238D Expired FR1210238A (fr) 1957-09-12 1958-09-12 Filtre piézoélectrique

Country Status (2)

Country Link
US (1) US2988714A (fr)
FR (1) FR1210238A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1307476A (fr) * 1960-12-12 1962-10-26 U S Sonics Corp Amplificateur sélecteur de fréquences
US3167728A (en) * 1961-05-15 1965-01-26 Ibm Transmission line having variably biased ferroelectric dielectric, useful as variable attenuator or variable delay line
US3297968A (en) * 1962-03-28 1967-01-10 Vibrasonics Inc Piezoelectric ceramic transformer
DE1225783B (de) * 1962-05-28 1966-09-29 Telefunken Patent Elektromechanische Filteranordnung, bestehend aus elektrisch verkoppelten, elektromechanischen Resonatoren
US3189851A (en) * 1962-06-04 1965-06-15 Sonus Corp Piezoelectric filter
US3167667A (en) * 1962-08-08 1965-01-26 Lear Siegler Inc Piezoelectric force controller
US3222622A (en) * 1962-08-14 1965-12-07 Clevite Corp Wave filter comprising piezoelectric wafer electroded to define a plurality of resonant regions independently operable without significant electro-mechanical interaction
DE2001433C3 (de) * 1970-01-07 1983-06-01 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Bandpaßfilter
US4306204A (en) * 1980-04-07 1981-12-15 Rockwell International Corporation Bandpass mechanical filter
US4433316A (en) * 1981-08-28 1984-02-21 General Electric Company Crystal filter and method for fabrication
EP3093991A1 (fr) * 2015-05-12 2016-11-16 Services Pétroliers Schlumberger Sous-système de filtre

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1978475A (en) * 1931-06-15 1934-10-30 Rca Corp Intermediate frequency amplifier
FR796611A (fr) * 1935-01-07 1936-04-11 Materiel Telephonique Perfectionnements aux filtres d'ondes électriques
US2248776A (en) * 1938-07-28 1941-07-08 Bell Telephone Labor Inc Wave filter
US2253942A (en) * 1940-04-24 1941-08-26 Radio Patents Corp Selectivity control system
US2373431A (en) * 1943-03-30 1945-04-10 Bell Telephone Labor Inc Electric wave filter
US2830274A (en) * 1954-01-04 1958-04-08 Gen Electric Electromechanical transducer

Also Published As

Publication number Publication date
US2988714A (en) 1961-06-13

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