NL272285A - - Google Patents

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Publication number
NL272285A
NL272285A NL272285DA NL272285A NL 272285 A NL272285 A NL 272285A NL 272285D A NL272285D A NL 272285DA NL 272285 A NL272285 A NL 272285A
Authority
NL
Netherlands
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 NL272285A publication Critical patent/NL272285A/xx

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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
    • H01Q19/15—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 line source, e.g. leaky waveguide antennas
NL272285D 1960-12-19 NL272285A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76943A US3162858A (en) 1960-12-19 1960-12-19 Ring focus antenna feed

Publications (1)

Publication Number Publication Date
NL272285A true NL272285A (fr)

Family

ID=22135131

Family Applications (1)

Application Number Title Priority Date Filing Date
NL272285D NL272285A (fr) 1960-12-19

Country Status (6)

Country Link
US (1) US3162858A (fr)
BE (1) BE611501A (fr)
DE (1) DE1245447B (fr)
GB (1) GB1004318A (fr)
NL (1) NL272285A (fr)
SE (1) SE300121B (fr)

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Also Published As

Publication number Publication date
SE300121B (fr) 1968-04-08
US3162858A (en) 1964-12-22
DE1245447B (de) 1967-07-27
GB1004318A (en) 1965-09-15
BE611501A (fr) 1962-03-30

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