BE488912A - - Google Patents

Info

Publication number
BE488912A
BE488912A BE488912DA BE488912A BE 488912 A BE488912 A BE 488912A BE 488912D A BE488912D A BE 488912DA BE 488912 A BE488912 A BE 488912A
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 BE488912A publication Critical patent/BE488912A/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H01Q19/13—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
    • H01Q19/134—Rear-feeds; Splash plate feeds
    • H01Q19/136—Rear-feeds; Splash plate feeds cross-polarised
BE488912D 1948-05-08 BE488912A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25897A US2552146A (en) 1948-05-08 1948-05-08 Duplex directive antenna system

Publications (1)

Publication Number Publication Date
BE488912A true BE488912A (fr)

Family

ID=21828653

Family Applications (1)

Application Number Title Priority Date Filing Date
BE488912D BE488912A (fr) 1948-05-08

Country Status (3)

Country Link
US (1) US2552146A (fr)
BE (1) BE488912A (fr)
FR (1) FR985757A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE951733C (de) * 1953-01-13 1956-10-31 Telefunken Gmbh Einrichtung zum Anschluss einer koaxialen Hochfrequenzleitung an einen Verbraucher oder Generator mit symmetrischem Eingang
US2954556A (en) * 1956-10-10 1960-09-27 Andrew Corp Cross polarized dual feed
US5748156A (en) * 1994-02-28 1998-05-05 Chaparral Communications High-performance antenna structure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1927393A (en) * 1931-07-10 1933-09-19 Int Communications Lab Inc Transmission system for ultrashort waves
US2251530A (en) * 1940-03-19 1941-08-05 Rca Corp Support for high frequency concentric conductors
BE469469A (fr) * 1945-06-05

Also Published As

Publication number Publication date
US2552146A (en) 1951-05-08
FR985757A (fr) 1951-07-23

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