NL6410250A - - Google Patents

Info

Publication number
NL6410250A
NL6410250A NL6410250A NL6410250A NL6410250A NL 6410250 A NL6410250 A NL 6410250A NL 6410250 A NL6410250 A NL 6410250A NL 6410250 A NL6410250 A NL 6410250A NL 6410250 A NL6410250 A NL 6410250A
Authority
NL
Netherlands
Application number
NL6410250A
Other versions
NL138904B (nl
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
Publication of NL6410250A publication Critical patent/NL6410250A/xx
Publication of NL138904B publication Critical patent/NL138904B/nl

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
    • H01Q1/421—Means for correcting aberrations introduced by a radome
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
    • H01Q15/12—Refracting or diffracting devices, e.g. lens, prism functioning also as polarisation filter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/22—Reflecting surfaces; Equivalent structures functioning also as polarisation filter
    • 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
    • H01Q19/195—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 a reflecting surface acts also as a polarisation filter or a polarising device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)
NL646410250A 1963-09-09 1964-09-03 Antenne voor ultrahoge frequentie. NL138904B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR946916 1963-09-09

Publications (2)

Publication Number Publication Date
NL6410250A true NL6410250A (nl) 1972-03-27
NL138904B NL138904B (nl) 1973-05-15

Family

ID=8811967

Family Applications (1)

Application Number Title Priority Date Filing Date
NL646410250A NL138904B (nl) 1963-09-09 1964-09-03 Antenne voor ultrahoge frequentie.

Country Status (5)

Country Link
US (1) US3688311A (nl)
DE (1) DE1441642C3 (nl)
FR (1) FR1604514A (nl)
GB (1) GB1268341A (nl)
NL (1) NL138904B (nl)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4145695A (en) * 1977-03-01 1979-03-20 Bell Telephone Laboratories, Incorporated Launcher reflectors for correcting for astigmatism in off-axis fed reflector antennas
US4339757A (en) * 1980-11-24 1982-07-13 Bell Telephone Laboratories, Incorporated Broadband astigmatic feed arrangement for an antenna
US4343004A (en) * 1980-11-24 1982-08-03 Bell Telephone Laboratories, Incorporated Broadband astigmatic feed arrangement for an antenna
US4535338A (en) * 1982-05-10 1985-08-13 At&T Bell Laboratories Multibeam antenna arrangement
US4491848A (en) * 1982-08-30 1985-01-01 At&T Bell Laboratories Substantially frequency-independent aberration correcting antenna arrangement
US4755826A (en) * 1983-01-10 1988-07-05 The United States Of America As Represented By The Secretary Of The Navy Bicollimated offset Gregorian dual reflector antenna system
US4574287A (en) * 1983-03-04 1986-03-04 The United States Of America As Represented By The Secretary Of The Navy Fixed aperture, rotating feed, beam scanning antenna system
US4769646A (en) * 1984-02-27 1988-09-06 United Technologies Corporation Antenna system and dual-fed lenses producing characteristically different beams
US4791427A (en) * 1985-11-22 1988-12-13 United Technologies Corporation Multimode, multispectral antenna
GB2264006B (en) * 1992-02-01 1995-09-27 British Aerospace Space And Co A reflector antenna assembly for dual linear polarisation
US6225961B1 (en) 1999-07-27 2001-05-01 Prc Inc. Beam waveguide antenna with independently steerable antenna beams and method of compensating for planetary aberration in antenna beam tracking of spacecraft

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2846680A (en) * 1946-06-29 1958-08-05 Bell Telephone Labor Inc Directive antennas
US2790169A (en) * 1949-04-18 1957-04-23 Itt Antenna
US2736895A (en) * 1951-02-16 1956-02-28 Elliott Brothers London Ltd High frequency radio aerials
US2975419A (en) * 1959-10-13 1961-03-14 Newell H Brown Microwave antenna reflector system for scanning by displacement of focal image

Also Published As

Publication number Publication date
DE1441642B2 (de) 1974-03-28
DE1441642A1 (de) 1972-07-27
US3688311A (en) 1972-08-29
NL138904B (nl) 1973-05-15
GB1268341A (en) 1972-03-29
FR1604514A (nl) 1971-11-29
DE1441642C3 (de) 1979-08-30

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: C S F