GB1499503A - Aerial feed array arrangements - Google Patents

Aerial feed array arrangements

Info

Publication number
GB1499503A
GB1499503A GB3451774A GB3451774A GB1499503A GB 1499503 A GB1499503 A GB 1499503A GB 3451774 A GB3451774 A GB 3451774A GB 3451774 A GB3451774 A GB 3451774A GB 1499503 A GB1499503 A GB 1499503A
Authority
GB
United Kingdom
Prior art keywords
dipoles
fed
produced
phase
pairs
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
GB3451774A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi Co Ltd
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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB3451774A priority Critical patent/GB1499503A/en
Publication of GB1499503A publication Critical patent/GB1499503A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • 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
    • H01Q19/17—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 comprising two or more radiating elements

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

1499503 Aerials MARCONI CO Ltd [6 Aug 1974] 34517/74 Heading H4A An aerial feed array comprises two pairs of spaced, parallel, slot-fed dipoles 8, 10; 9, 11, mounted along the sides of a square on one side of a circular ground plane for producing radiation to feed a main radiating element such as a parabolic dish. The radiating dipole element 4,5 is preferably 0À38 # long, the effective length being made to be 0À5 # by loading strips 7. Horizontal or vertical plane polarized radiation may be produced by feeding only one pair of dipoles whilst circular polarization is produced when both pairs are fed in phase quadrature. Linear polarization (Œ45 degrees to horizontal) is produced by feeding all of the dipoles in phase or anti-phase, or they may all be fed in series.
GB3451774A 1975-05-30 1975-05-30 Aerial feed array arrangements Expired GB1499503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3451774A GB1499503A (en) 1975-05-30 1975-05-30 Aerial feed array arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3451774A GB1499503A (en) 1975-05-30 1975-05-30 Aerial feed array arrangements

Publications (1)

Publication Number Publication Date
GB1499503A true GB1499503A (en) 1978-02-01

Family

ID=10366636

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3451774A Expired GB1499503A (en) 1975-05-30 1975-05-30 Aerial feed array arrangements

Country Status (1)

Country Link
GB (1) GB1499503A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191044A (en) * 1986-05-28 1987-12-02 Gen Electric Co Plc Antenna arrangement
DE4218544A1 (en) * 1992-06-05 1993-12-16 Abb Patent Gmbh Shortwave transmitter antenna
FR2742003A1 (en) * 1995-11-30 1997-06-06 Advantest Corp ANTENNA AND ANTENNA ASSEMBLY FOR MEASURING MICROWAVE ELECTROMAGNETIC FIELD DISTRIBUTION

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2191044A (en) * 1986-05-28 1987-12-02 Gen Electric Co Plc Antenna arrangement
GB2191044B (en) * 1986-05-28 1989-12-13 Gen Electric Plc Antenna arrangement
DE4218544A1 (en) * 1992-06-05 1993-12-16 Abb Patent Gmbh Shortwave transmitter antenna
FR2742003A1 (en) * 1995-11-30 1997-06-06 Advantest Corp ANTENNA AND ANTENNA ASSEMBLY FOR MEASURING MICROWAVE ELECTROMAGNETIC FIELD DISTRIBUTION

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Legal Events

Date Code Title Description
CSNS Application of which complete specification have been accepted and published, but patent is not sealed