FR860355A - Filtres d'ondes - Google Patents

Filtres d'ondes

Info

Publication number
FR860355A
FR860355A FR860355DA FR860355A FR 860355 A FR860355 A FR 860355A FR 860355D A FR860355D A FR 860355DA FR 860355 A FR860355 A FR 860355A
Authority
FR
France
Prior art keywords
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
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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR860355A publication Critical patent/FR860355A/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
    • H03H9/0023—Balance-unbalance or balance-balance networks
    • H03H9/0095—Balance-unbalance or balance-balance networks using bulk acoustic wave devices
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Filters And Equalizers (AREA)
FR860355D 1938-09-24 1939-09-22 Filtres d'ondes Expired FR860355A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US231492A US2216541A (en) 1938-09-24 1938-09-24 Wave filter

Publications (1)

Publication Number Publication Date
FR860355A true FR860355A (fr) 1941-01-13

Family

ID=22869448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR860355D Expired FR860355A (fr) 1938-09-24 1939-09-22 Filtres d'ondes

Country Status (3)

Country Link
US (1) US2216541A (fr)
FR (1) FR860355A (fr)
GB (1) GB531336A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438392A (en) * 1944-05-06 1948-03-23 Rca Corp Oscillation generation control
US2980872A (en) * 1958-06-13 1961-04-18 Hughes Aircraft Co Bandpass filters
US3416104A (en) * 1965-05-05 1968-12-10 Filtech Corp Band-pass crystal filters

Also Published As

Publication number Publication date
US2216541A (en) 1940-10-01
GB531336A (en) 1941-01-02

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