GB1355279A - Aerial arrangements - Google Patents

Aerial arrangements

Info

Publication number
GB1355279A
GB1355279A GB5676772A GB5676772A GB1355279A GB 1355279 A GB1355279 A GB 1355279A GB 5676772 A GB5676772 A GB 5676772A GB 5676772 A GB5676772 A GB 5676772A GB 1355279 A GB1355279 A GB 1355279A
Authority
GB
United Kingdom
Prior art keywords
waveguide
dec
degrees
feed arrangement
slots
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
GB5676772A
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.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of GB1355279A publication Critical patent/GB1355279A/en
Expired legal-status Critical Current

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

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Waveguide Aerials (AREA)

Abstract

1355279 Aerials LICENTIA PATENTVERWALTUNGS GmbH 8 Dec 1972 [14 Dec 1971] 56767/72 Heading H4A An aerial feed arrangement comprises a waveguide 1 with an end aperture 2 covered by a dielectric hood 7. A metal ring 4 is disposed on the end of the waveguide 1 'and has a conical surface 5 with an aperture angle a of 230Œ30 degrees. Concentric slots 6 are provided on said surface. The diameter of the ring may be 3#, and there may be at least four slots, having depths of #/4, widths of #/10 to #/20, and spacings apart of #/4 to #/8, where # is the wavelength at the mean working frequency. An serial system comprises such a feed arrangement with a parabolic reflector having an aperture angle between 120 and 80 degrees. The arrangement is stated to promote equality of beam widths in the E and H planes, with improved matching and lower side lobes, over a wide frequency band.
GB5676772A 1971-12-14 1972-12-08 Aerial arrangements Expired GB1355279A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712161894 DE2161894C3 (en) 1971-12-14 1971-12-14 Antenna system

Publications (1)

Publication Number Publication Date
GB1355279A true GB1355279A (en) 1974-06-05

Family

ID=5827878

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5676772A Expired GB1355279A (en) 1971-12-14 1972-12-08 Aerial arrangements

Country Status (2)

Country Link
DE (1) DE2161894C3 (en)
GB (1) GB1355279A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL272285A (en) * 1960-12-19
US3212096A (en) * 1961-09-25 1965-10-12 Danver M Schuster Parabolic reflector horn feed with spillover correction
BE653062A (en) * 1963-09-12

Also Published As

Publication number Publication date
DE2161894C3 (en) 1981-08-27
DE2161894A1 (en) 1973-06-20
DE2161894B2 (en) 1980-10-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees