BE622703A - - Google Patents

Info

Publication number
BE622703A
BE622703A BE622703DA BE622703A BE 622703 A BE622703 A BE 622703A BE 622703D A BE622703D A BE 622703DA BE 622703 A BE622703 A BE 622703A
Authority
BE
Belgium
Application number
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.)
Publication of BE622703A publication Critical patent/BE622703A/xx

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
    • H03H9/52—Electric coupling means

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Filters And Equalizers (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
BE622703D 1961-09-22 BE622703A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES75881A DE1221739B (de) 1961-09-22 1961-09-22 Elektromechanisches Bandfilter

Publications (1)

Publication Number Publication Date
BE622703A true BE622703A (ja)

Family

ID=7505701

Family Applications (1)

Application Number Title Priority Date Filing Date
BE622703D BE622703A (ja) 1961-09-22

Country Status (6)

Country Link
US (1) US3284728A (ja)
BE (1) BE622703A (ja)
CH (1) CH395365A (ja)
DE (1) DE1221739B (ja)
GB (1) GB990298A (ja)
NL (2) NL143761B (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT259027B (de) * 1964-09-21 1967-12-27 Siemens Ag Elektromechanisches Bandfilter
US4284966A (en) * 1979-12-21 1981-08-18 Motorola, Inc. Wide bandwidth helical resonator filter

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1976481A (en) * 1931-08-20 1934-10-09 Bell Telephone Labor Inc Wave analysis
US2001387A (en) * 1931-09-24 1935-05-14 Rca Corp Filter
US2115818A (en) * 1935-12-18 1938-05-03 Bell Telephone Labor Inc Wave transmission network
US2248776A (en) * 1938-07-28 1941-07-08 Bell Telephone Labor Inc Wave filter
NL58138C (ja) * 1939-06-02
US2271200A (en) * 1939-07-19 1942-01-27 Bell Telephone Labor Inc Wave filter
NL166788B (nl) * 1952-01-18 Contraves Ag Werkwijze voor het vervaardigen van een elektrode in een inrichting voor het bepalen van de afwijkingen van de loodlijn.
US2770782A (en) * 1952-08-30 1956-11-13 Rca Corp Frequency selective coupling system
US2774042A (en) * 1953-04-29 1956-12-11 Bell Telephone Labor Inc Electromechanical wave filter

Also Published As

Publication number Publication date
DE1221739B (de) 1966-07-28
US3284728A (en) 1966-11-08
CH395365A (de) 1965-07-15
GB990298A (en) 1965-04-28
NL283485A (ja)
NL143761B (nl) 1974-10-15

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