FR2264423A1 - Filter with narrow frequency pass-bond - uses resonators each comprising cylindrical tube vibrating longitudinally - Google Patents

Filter with narrow frequency pass-bond - uses resonators each comprising cylindrical tube vibrating longitudinally

Info

Publication number
FR2264423A1
FR2264423A1 FR7408317A FR7408317A FR2264423A1 FR 2264423 A1 FR2264423 A1 FR 2264423A1 FR 7408317 A FR7408317 A FR 7408317A FR 7408317 A FR7408317 A FR 7408317A FR 2264423 A1 FR2264423 A1 FR 2264423A1
Authority
FR
France
Prior art keywords
filter
bond
cylindrical tube
resonator tubes
narrow frequency
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
FR7408317A
Other languages
French (fr)
Other versions
FR2264423B1 (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.)
ANTOINE JEAN FR
Original Assignee
ANTOINE JEAN FR
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 ANTOINE JEAN FR filed Critical ANTOINE JEAN FR
Priority to FR7408317A priority Critical patent/FR2264423A1/en
Publication of FR2264423A1 publication Critical patent/FR2264423A1/en
Application granted granted Critical
Publication of FR2264423B1 publication Critical patent/FR2264423B1/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

The filter has an input and an output electromechanical transducer (31, 32) and a series of resonator tubes (1-3) between them, the latter having a common resonance frequency. The first and last resonator tubes (1, 3) are respectively coupled to the input and output transducers (31, 32) with coupling elements (41, 42) between each two adjacent intermediate resonator tubes, these elements vibrating in a direction perpendicular to the longitudinal vibration of the resonator tubes. The coupling elements (41, 42) are in the form of short cylindrical rods, with a much smaller diameter than that of the resonator tubes, and perpendicular to the latter, the end of each rod soldered to a respective resonator tube (1-3).
FR7408317A 1974-03-12 1974-03-12 Filter with narrow frequency pass-bond - uses resonators each comprising cylindrical tube vibrating longitudinally Granted FR2264423A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7408317A FR2264423A1 (en) 1974-03-12 1974-03-12 Filter with narrow frequency pass-bond - uses resonators each comprising cylindrical tube vibrating longitudinally

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7408317A FR2264423A1 (en) 1974-03-12 1974-03-12 Filter with narrow frequency pass-bond - uses resonators each comprising cylindrical tube vibrating longitudinally

Publications (2)

Publication Number Publication Date
FR2264423A1 true FR2264423A1 (en) 1975-10-10
FR2264423B1 FR2264423B1 (en) 1978-01-06

Family

ID=9136169

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7408317A Granted FR2264423A1 (en) 1974-03-12 1974-03-12 Filter with narrow frequency pass-bond - uses resonators each comprising cylindrical tube vibrating longitudinally

Country Status (1)

Country Link
FR (1) FR2264423A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100506A (en) * 1975-11-20 1978-07-11 Societe Lignes Telegraphiques Et Telephoniques Electromechanical filter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4100506A (en) * 1975-11-20 1978-07-11 Societe Lignes Telegraphiques Et Telephoniques Electromechanical filter

Also Published As

Publication number Publication date
FR2264423B1 (en) 1978-01-06

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Legal Events

Date Code Title Description
ST Notification of lapse