GB710467A - Improvements in or relating to aerial systems - Google Patents

Improvements in or relating to aerial systems

Info

Publication number
GB710467A
GB710467A GB12349/52A GB1234952A GB710467A GB 710467 A GB710467 A GB 710467A GB 12349/52 A GB12349/52 A GB 12349/52A GB 1234952 A GB1234952 A GB 1234952A GB 710467 A GB710467 A GB 710467A
Authority
GB
United Kingdom
Prior art keywords
right angles
plane
group
plate
signals
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
GB12349/52A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB12349/52A priority Critical patent/GB710467A/en
Publication of GB710467A publication Critical patent/GB710467A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/001—Crossed polarisation dual antennas
    • 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
    • H01Q19/02—Details
    • H01Q19/021—Means for reducing undesirable effects
    • H01Q19/025—Means for reducing undesirable effects for optimizing the matching of the primary feed, e.g. vertex plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/45—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements using two or more feeds in association with a common reflecting, diffracting or refracting device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

710,467. Aerials. GENERAL ELECTRIC CO., Ltd., and FISHER, F. J. May 15, 1953 [May 15, 1952], No. 12349/52. Class 40 (7) An aerial system comprises an open-ended waveguide 2 or other radiating or receiving element and an associated paraboloidal reflector 1 on which is mounted a vertex plate 5 to match a plane-polarized electromagnetic wave-signal radiated or received by the system to the waveguide or other element and to eliminate or reduce standing waves along the feeder. The system also includes a group of electrical conductors 6 spaced between the waveguide and the vertex plate and serving likewise to match a second signal, plane-polarized in a direction at right angles to the first, to the guide. Preferably the signals have different frequencies. The group of conductors 6 may consist of parallel conductors lying in a plane at right angles to the axis 4 of the system and supported by a ring or frame of either conductive or non-conductive material. It serves to reflect the signals of one polarization but to pass through to the plate 5 signals polarized at right angles. The plate 5 need not be a continuous surface but may consist of another group of parallel wires at right angles to, and in a plane parallel to, the group 6.
GB12349/52A 1952-05-15 1952-05-15 Improvements in or relating to aerial systems Expired GB710467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB12349/52A GB710467A (en) 1952-05-15 1952-05-15 Improvements in or relating to aerial systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12349/52A GB710467A (en) 1952-05-15 1952-05-15 Improvements in or relating to aerial systems

Publications (1)

Publication Number Publication Date
GB710467A true GB710467A (en) 1954-06-16

Family

ID=10002879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12349/52A Expired GB710467A (en) 1952-05-15 1952-05-15 Improvements in or relating to aerial systems

Country Status (1)

Country Link
GB (1) GB710467A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094315B (en) * 1955-12-29 1960-12-08 Telefunken Gmbh Directional antenna for directional radio links to compensate for radiation or angle of incidence variations
US3133284A (en) * 1959-03-02 1964-05-12 Rca Corp Paraboloidal antenna with compensating elements to reduce back radiation into feed
US4034378A (en) * 1975-07-21 1977-07-05 Bell Telephone Laboratories, Incorporated Antenna with echo cancelling elements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094315B (en) * 1955-12-29 1960-12-08 Telefunken Gmbh Directional antenna for directional radio links to compensate for radiation or angle of incidence variations
US3133284A (en) * 1959-03-02 1964-05-12 Rca Corp Paraboloidal antenna with compensating elements to reduce back radiation into feed
US4034378A (en) * 1975-07-21 1977-07-05 Bell Telephone Laboratories, Incorporated Antenna with echo cancelling elements

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