NL6812786A - - Google Patents

Info

Publication number
NL6812786A
NL6812786A NL6812786A NL6812786A NL6812786A NL 6812786 A NL6812786 A NL 6812786A NL 6812786 A NL6812786 A NL 6812786A NL 6812786 A NL6812786 A NL 6812786A NL 6812786 A NL6812786 A NL 6812786A
Authority
NL
Netherlands
Application number
NL6812786A
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 filed Critical
Priority to NL6812786A priority Critical patent/NL6812786A/xx
Priority to US855570A priority patent/US3633209A/en
Publication of NL6812786A publication Critical patent/NL6812786A/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
    • H01Q19/18—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 having two or more spaced reflecting surfaces
    • H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
    • H01Q19/191—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds
    • 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
    • H01Q19/104—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 using a substantially flat reflector for deflecting the radiated beam, e.g. periscopic antennas
NL6812786A 1968-09-06 1968-09-06 NL6812786A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL6812786A NL6812786A (en) 1968-09-06 1968-09-06
US855570A US3633209A (en) 1968-09-06 1969-09-05 Offset paraboloid-plane reflector antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6812786A NL6812786A (en) 1968-09-06 1968-09-06

Publications (1)

Publication Number Publication Date
NL6812786A true NL6812786A (en) 1970-03-10

Family

ID=19804579

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6812786A NL6812786A (en) 1968-09-06 1968-09-06

Country Status (2)

Country Link
US (1) US3633209A (en)
NL (1) NL6812786A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3852885A (en) * 1984-02-13 1985-08-22 Andrew Corporation Planar - parabolic reflector antenna
US4638322A (en) * 1984-02-14 1987-01-20 The Boeing Company Multiple feed antenna

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB577939A (en) * 1941-06-06 1946-06-06 Harry Melville Dowsett Improvements in the directive propagation of electro-magnetic waves
US2579140A (en) * 1946-03-13 1951-12-18 Crawford Walter Freeman Wave projector
FR1128952A (en) * 1955-03-17 1957-01-14 Materiel Telephonique Ultra-shortwave antenna
US3365720A (en) * 1961-12-21 1968-01-23 Keltec Ind Inc Combined hyperbolic and parabolic double reflector
US3357022A (en) * 1963-12-05 1967-12-05 Bell Telephone Labor Inc Folded horn-reflector antenna structure
GB1099429A (en) * 1965-12-03 1968-01-17 Mini Of Technology Improvements in or relating to microwave aerial assemblies

Also Published As

Publication number Publication date
US3633209A (en) 1972-01-04

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Legal Events

Date Code Title Description
BV The patent application has lapsed