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FR818131A - Improvements made to installations for very short or ultra-short wave radiocommunications - Google Patents

Improvements made to installations for very short or ultra-short wave radiocommunications

Info

Publication number
FR818131A
FR818131A FR818131DA FR818131A FR 818131 A FR818131 A FR 818131A FR 818131D A FR818131D A FR 818131DA FR 818131 A FR818131 A FR 818131A
Authority
FR
France
Prior art keywords
short
radiocommunications
installations
ultra
improvements made
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.)
Bronzavia SA
Original Assignee
Bronzavia 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 Bronzavia SA filed Critical Bronzavia SA
Application granted granted Critical
Publication of FR818131A publication Critical patent/FR818131A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H01Q3/242—Circumferential scanning
FR818131D 1936-02-21 1937-02-20 Improvements made to installations for very short or ultra-short wave radiocommunications Expired FR818131A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE818131X 1936-02-21

Publications (1)

Publication Number Publication Date
FR818131A true FR818131A (en) 1937-09-18

Family

ID=3881382

Family Applications (1)

Application Number Title Priority Date Filing Date
FR818131D Expired FR818131A (en) 1936-02-21 1937-02-20 Improvements made to installations for very short or ultra-short wave radiocommunications

Country Status (1)

Country Link
FR (1) FR818131A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629868A (en) * 1947-02-03 1953-02-24 Via Joseph La Radio echo direction determining apparatus
US2661423A (en) * 1953-04-27 1953-12-01 Marvin P Middlemark Multidirectional antenna with included reflector
US2871476A (en) * 1944-09-11 1959-01-27 Itt Direction finder
US3317912A (en) * 1963-07-29 1967-05-02 Kenneth S Kelleher Plural concentric parabolic antenna for omnidirectional coverage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2871476A (en) * 1944-09-11 1959-01-27 Itt Direction finder
US2629868A (en) * 1947-02-03 1953-02-24 Via Joseph La Radio echo direction determining apparatus
US2661423A (en) * 1953-04-27 1953-12-01 Marvin P Middlemark Multidirectional antenna with included reflector
US3317912A (en) * 1963-07-29 1967-05-02 Kenneth S Kelleher Plural concentric parabolic antenna for omnidirectional coverage

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