FR871391A - Variable selectivity coupling system - Google Patents

Variable selectivity coupling system

Info

Publication number
FR871391A
FR871391A FR871391DA FR871391A FR 871391 A FR871391 A FR 871391A FR 871391D A FR871391D A FR 871391DA FR 871391 A FR871391 A FR 871391A
Authority
FR
France
Prior art keywords
coupling system
variable selectivity
selectivity coupling
variable
selectivity
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
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.)
Optique et Precision de Levallois SA
Original Assignee
Optique et Precision de Levallois 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 Optique et Precision de Levallois SA filed Critical Optique et Precision de Levallois SA
Application granted granted Critical
Publication of FR871391A publication Critical patent/FR871391A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0153—Electrical filters; Controlling thereof
    • H03H7/0161—Bandpass filters
FR871391D 1941-04-07 1941-04-07 Variable selectivity coupling system Expired FR871391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR871391T 1941-04-07

Publications (1)

Publication Number Publication Date
FR871391A true FR871391A (en) 1942-04-22

Family

ID=9355630

Family Applications (1)

Application Number Title Priority Date Filing Date
FR871391D Expired FR871391A (en) 1941-04-07 1941-04-07 Variable selectivity coupling system

Country Status (1)

Country Link
FR (1) FR871391A (en)

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