GB730003A - Improvements in and relating to antenna systems - Google Patents

Improvements in and relating to antenna systems

Info

Publication number
GB730003A
GB730003A GB2951950A GB2951950A GB730003A GB 730003 A GB730003 A GB 730003A GB 2951950 A GB2951950 A GB 2951950A GB 2951950 A GB2951950 A GB 2951950A GB 730003 A GB730003 A GB 730003A
Authority
GB
United Kingdom
Prior art keywords
guide
wave
reflector
slots
face
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
GB2951950A
Inventor
Kenneth Foster
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.)
AC Cossor Ltd
Original Assignee
AC Cossor 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 AC Cossor Ltd filed Critical AC Cossor Ltd
Priority to GB2951950A priority Critical patent/GB730003A/en
Publication of GB730003A publication Critical patent/GB730003A/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
    • H01Q19/138—Parallel-plate feeds, e.g. pill-box, cheese aerials
    • 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
    • H01Q19/175—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 arrayed along the focal line of a cylindrical focusing surface

Abstract

730,003. Aerials. COSSOR, Ltd., A. C. Dec. 3, 1951 [Dec. 1, 1950], No. 29519/50. Class 40 (7). An aerial comprising a slotted wave-guide 1 mounted at the focus of a " cheese " reflector 6 comprises also a body of dielectric material 3 placed in the path of energy passing between the wave-guide and the reflector and preferably affixed to the surface of the wave-guide, in order to cause, in the case of the aerial being-used for transmission, substantially all the energy radiated from the wave-guide to impinge upon the reflector and thus reduce loss by lateral radiation from the slots. Fig. 4 is a front view of the radiating face of the wave-guide upon which is mounted an equilateral-triangular prism of dielectric material. The radiating slots 2 are displaced in alternately opposite directions from the centre line of the face of the wave-guide, the inner two slots being displaced to a greater extent than the outer two. The wave-guide 1 is attached to the upper and lower surfaces 4 and 5 of the reflector by means of the brackets 7, spacing washers being inserted as necessary between the guide and the brackets to adjust the position of the guide with respect to the focal line of the reflector. In a modification, Fig. 7, the wave-guide 14 comprises two radiating slots which are both displaced in the same direction with respect to the centre line of the guide face, a dummy metallic element 18 being attached to the waveguide so as to. broaden the slotted face thereof and make the slots lie centrally with respect therewith.
GB2951950A 1950-12-01 1950-12-01 Improvements in and relating to antenna systems Expired GB730003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2951950A GB730003A (en) 1950-12-01 1950-12-01 Improvements in and relating to antenna systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2951950A GB730003A (en) 1950-12-01 1950-12-01 Improvements in and relating to antenna systems

Publications (1)

Publication Number Publication Date
GB730003A true GB730003A (en) 1955-05-18

Family

ID=10292820

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2951950A Expired GB730003A (en) 1950-12-01 1950-12-01 Improvements in and relating to antenna systems

Country Status (1)

Country Link
GB (1) GB730003A (en)

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