FR1218141A - Electromechanical filter for high frequency - Google Patents

Electromechanical filter for high frequency

Info

Publication number
FR1218141A
FR1218141A FR788072A FR788072A FR1218141A FR 1218141 A FR1218141 A FR 1218141A FR 788072 A FR788072 A FR 788072A FR 788072 A FR788072 A FR 788072A FR 1218141 A FR1218141 A FR 1218141A
Authority
FR
France
Prior art keywords
high frequency
electromechanical filter
electromechanical
filter
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.)
Expired
Application number
FR788072A
Other languages
French (fr)
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi Co Ltd
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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Application granted granted Critical
Publication of FR1218141A publication Critical patent/FR1218141A/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)
FR788072A 1958-03-03 1959-03-02 Electromechanical filter for high frequency Expired FR1218141A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB671458A GB846999A (en) 1958-03-03 1958-03-03 Improvements in or relating to electro-mechanical high frequency filters

Publications (1)

Publication Number Publication Date
FR1218141A true FR1218141A (en) 1960-05-09

Family

ID=9819437

Family Applications (1)

Application Number Title Priority Date Filing Date
FR788072A Expired FR1218141A (en) 1958-03-03 1959-03-02 Electromechanical filter for high frequency

Country Status (2)

Country Link
FR (1) FR1218141A (en)
GB (1) GB846999A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497030A1 (en) * 1980-12-18 1982-06-25 Lignes Telegraph Telephon Electromechanical band-pass filter with low passband ripple - uses flexural resonators in cascade coupled by longitudinal vibrators quarter wavelength long using direct synthesis design method
FR2497032A1 (en) * 1980-12-18 1982-06-25 Lignes Telegraph Telephon Electromechanical band-pass filter - uses flexural resonators in cascade coupled by longitudinal vibrating half-wave resonators using direct synthesis design
FR2497031A1 (en) * 1980-12-18 1982-06-25 Lignes Telegraph Telephon Electromechanical band-pass filter with low passband ripple - uses flexural resonators in cascade coupled by longitudinal vibrating rods shorter than 0.25 of direct synthesis

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL283445A (en) * 1961-09-28

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2497030A1 (en) * 1980-12-18 1982-06-25 Lignes Telegraph Telephon Electromechanical band-pass filter with low passband ripple - uses flexural resonators in cascade coupled by longitudinal vibrators quarter wavelength long using direct synthesis design method
FR2497032A1 (en) * 1980-12-18 1982-06-25 Lignes Telegraph Telephon Electromechanical band-pass filter - uses flexural resonators in cascade coupled by longitudinal vibrating half-wave resonators using direct synthesis design
FR2497031A1 (en) * 1980-12-18 1982-06-25 Lignes Telegraph Telephon Electromechanical band-pass filter with low passband ripple - uses flexural resonators in cascade coupled by longitudinal vibrating rods shorter than 0.25 of direct synthesis

Also Published As

Publication number Publication date
GB846999A (en) 1960-09-07

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