FR2376558A1 - Structure de filtre electromecanique - Google Patents

Structure de filtre electromecanique

Info

Publication number
FR2376558A1
FR2376558A1 FR7639576A FR7639576A FR2376558A1 FR 2376558 A1 FR2376558 A1 FR 2376558A1 FR 7639576 A FR7639576 A FR 7639576A FR 7639576 A FR7639576 A FR 7639576A FR 2376558 A1 FR2376558 A1 FR 2376558A1
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
FR7639576A
Other languages
English (en)
Other versions
FR2376558B1 (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 FR7639576A priority Critical patent/FR2376558A1/fr
Priority to US05/862,906 priority patent/US4163960A/en
Priority to DE19772758908 priority patent/DE2758908A1/de
Publication of FR2376558A1 publication Critical patent/FR2376558A1/fr
Application granted granted Critical
Publication of FR2376558B1 publication Critical patent/FR2376558B1/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

1. Réduire l'encombrement de filtres électromécaniques composés de barreaux reliés par des coupleurs et présentant au moins un pôle d'atténuation réalisé par au moins un coupleur additionnel entre barreaux non adjacents. 2. Les barreaux sont disposés parallèlement à une direction dans au moins deux plans paralléles et les coupleurs supplémentaires associent des barreaux appartenant à deux plans distincts. 3. Filtres pour télécommunication.
FR7639576A 1976-12-30 1976-12-30 Structure de filtre electromecanique Granted FR2376558A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7639576A FR2376558A1 (fr) 1976-12-30 1976-12-30 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
FR7639576A FR2376558A1 (fr) 1976-12-30 1976-12-30 Structure de filtre electromecanique

Publications (2)

Publication Number Publication Date
FR2376558A1 true FR2376558A1 (fr) 1978-07-28
FR2376558B1 FR2376558B1 (fr) 1980-09-19

Family

ID=9181745

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639576A Granted FR2376558A1 (fr) 1976-12-30 1976-12-30 Structure de filtre electromecanique

Country Status (1)

Country Link
FR (1) FR2376558A1 (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
FR2376558B1 (fr) 1980-09-19

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Legal Events

Date Code Title Description
ST Notification of lapse