GB1482112A - Electromechanical filter with flexurally vibrating resonators - Google Patents

Electromechanical filter with flexurally vibrating resonators

Info

Publication number
GB1482112A
GB1482112A GB3121674A GB3121674A GB1482112A GB 1482112 A GB1482112 A GB 1482112A GB 3121674 A GB3121674 A GB 3121674A GB 3121674 A GB3121674 A GB 3121674A GB 1482112 A GB1482112 A GB 1482112A
Authority
GB
United Kingdom
Prior art keywords
resonators
wire
electromechanical filter
electromechanical
wires
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
GB3121674A
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.)
Telettra Laboratori di Telefonia Elettronica e Radio SpA
Original Assignee
Telettra Laboratori di Telefonia Elettronica e Radio SpA
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 Telettra Laboratori di Telefonia Elettronica e Radio SpA filed Critical Telettra Laboratori di Telefonia Elettronica e Radio SpA
Publication of GB1482112A publication Critical patent/GB1482112A/en
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
    • H03H9/46—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

1482112 Electromechanical filters TELET. TRA-LABORATORI DI TELEFONIA ELETTRONICA & RADIO SpA 15 July 1974 [3 Aug 1973] 31216/74 Heading H3U An electromechanical filter comprises a plurality of flexural resonators arranged on both sides of a main coupling wire 1 to which they are all attached, one pair of resonators on one side of wire 1 being additionally coupled by means of a further wire FA which bridges one or more resonators on the other side of wire 1. To provide an attenuation peak at each side of the filter pass-band the wire F.A. may carry one or more weights p1, p2. Resonators 6, 15, 12, 13, 16 and 6<SP>1</SP> on one side of wire 1 are supported at nodal points by wires 2, 3; resonators 17, 10, 11, 18 are similarly supported by wires 4, 5.
GB3121674A 1973-08-03 1974-07-15 Electromechanical filter with flexurally vibrating resonators Expired GB1482112A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2748273A IT992811B (en) 1973-08-03 1973-08-03 ELECTROMECHANICAL FILTER WITH FLEXIBLE VIBRATING RESONATORS

Publications (1)

Publication Number Publication Date
GB1482112A true GB1482112A (en) 1977-08-03

Family

ID=11221735

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3121674A Expired GB1482112A (en) 1973-08-03 1974-07-15 Electromechanical filter with flexurally vibrating resonators

Country Status (8)

Country Link
BR (1) BR7406380D0 (en)
DE (1) DE2433874C3 (en)
ES (1) ES428885A1 (en)
FR (1) FR2239811B1 (en)
GB (1) GB1482112A (en)
IT (1) IT992811B (en)
RO (1) RO80736A (en)
YU (1) YU36321B (en)

Also Published As

Publication number Publication date
BR7406380D0 (en) 1975-05-20
IT992811B (en) 1975-09-30
YU36321B (en) 1982-06-18
FR2239811B1 (en) 1978-01-20
ES428885A1 (en) 1976-09-01
RO80736B (en) 1983-05-30
FR2239811A1 (en) 1975-02-28
RO80736A (en) 1983-06-01
DE2433874A1 (en) 1975-02-13
YU210174A (en) 1981-08-31
DE2433874C3 (en) 1978-06-15
DE2433874B2 (en) 1977-11-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee