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FR2389273A2 - Structure de filtre electromecanique - Google Patents

Structure de filtre electromecanique

Info

Publication number
FR2389273A2
FR2389273A2 FR7712410A FR7712410A FR2389273A2 FR 2389273 A2 FR2389273 A2 FR 2389273A2 FR 7712410 A FR7712410 A FR 7712410A FR 7712410 A FR7712410 A FR 7712410A FR 2389273 A2 FR2389273 A2 FR 2389273A2
Authority
FR
France
Prior art keywords
resonators
coupling
wavelength
coupling elements
pass 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.)
Granted
Application number
FR7712410A
Other languages
English (en)
Other versions
FR2389273B2 (fr
Inventor
Herbert Ernyei
Etienne Langlois
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.)
Lignes Telegraphiques et Telephoniques LTT SA
Original Assignee
Lignes Telegraphiques et Telephoniques LTT 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 Lignes Telegraphiques et Telephoniques LTT SA filed Critical Lignes Telegraphiques et Telephoniques LTT SA
Priority to FR7712410A priority Critical patent/FR2389273A2/fr
Priority to US05/862,906 priority patent/US4163960A/en
Priority to DE19772758908 priority patent/DE2758908A1/de
Publication of FR2389273A2 publication Critical patent/FR2389273A2/fr
Application granted granted Critical
Publication of FR2389273B2 publication Critical patent/FR2389273B2/fr
Granted 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
    • H03H9/48—Coupling means therefor
    • H03H9/50—Mechanical coupling means

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

a. Filtres électromécaniques composés de barreaux vibrant longitudinalement associés à des coupleurs vibrant en flexion et présentant des pôles réels. b. le pont créant les pôles a une longueur égale à 3 lambda /4 à un multiple de la longueur d'onde près; le nombre de barreaux enjambés est au moins égal à quatre et, de préférence, un multiple de quatre. c. titres utilisés aux télécommunications.
FR7712410A 1976-12-30 1977-04-25 Structure de filtre electromecanique Granted FR2389273A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7712410A FR2389273A2 (fr) 1977-04-25 1977-04-25 Structure de filtre electromecanique
US05/862,906 US4163960A (en) 1976-12-30 1977-12-21 Electromechanical filter structure
DE19772758908 DE2758908A1 (de) 1976-12-30 1977-12-30 Elektromechanisches bandfilter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7712410A FR2389273A2 (fr) 1977-04-25 1977-04-25 Structure de filtre electromecanique

Publications (2)

Publication Number Publication Date
FR2389273A2 true FR2389273A2 (fr) 1978-11-24
FR2389273B2 FR2389273B2 (fr) 1980-11-07

Family

ID=9189860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7712410A Granted FR2389273A2 (fr) 1976-12-30 1977-04-25 Structure de filtre electromecanique

Country Status (1)

Country Link
FR (1) FR2389273A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022690A1 (fr) * 1979-07-13 1981-01-21 Lignes Telegraphiques Et Telephoniques L.T.T. Cellules de filtre électromécanique et filtre passe-bande les incorporant
EP0023162A1 (fr) * 1979-07-18 1981-01-28 Lignes Telegraphiques Et Telephoniques L.T.T. Perfectionnements aux filtres électromécaniques passe-bande

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0022690A1 (fr) * 1979-07-13 1981-01-21 Lignes Telegraphiques Et Telephoniques L.T.T. Cellules de filtre électromécanique et filtre passe-bande les incorporant
FR2461403A1 (fr) * 1979-07-13 1981-01-30 Lignes Telegraph Telephon Structure perfectionnee de cellules de filtre electromecanique et filtres passe-bande les incorporant
EP0023162A1 (fr) * 1979-07-18 1981-01-28 Lignes Telegraphiques Et Telephoniques L.T.T. Perfectionnements aux filtres électromécaniques passe-bande
FR2462059A1 (fr) * 1979-07-18 1981-02-06 Lignes Telegraph Telephon Perfectionnements aux filtres electromecaniques passe-bande

Also Published As

Publication number Publication date
FR2389273B2 (fr) 1980-11-07

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