GB1162312A - Improvements in or relating to Microwave Aerial Assemblies - Google Patents

Improvements in or relating to Microwave Aerial Assemblies

Info

Publication number
GB1162312A
GB1162312A GB751567A GB751567A GB1162312A GB 1162312 A GB1162312 A GB 1162312A GB 751567 A GB751567 A GB 751567A GB 751567 A GB751567 A GB 751567A GB 1162312 A GB1162312 A GB 1162312A
Authority
GB
United Kingdom
Prior art keywords
reflector
strips
core
flanges
bonded
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
GB751567A
Inventor
George Rowley Walwyn
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.)
MINI OF TECHNOLOGY LONDON
Original Assignee
MINI OF TECHNOLOGY LONDON
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 MINI OF TECHNOLOGY LONDON filed Critical MINI OF TECHNOLOGY LONDON
Priority to GB751567A priority Critical patent/GB1162312A/en
Publication of GB1162312A publication Critical patent/GB1162312A/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
    • H01Q19/02—Details
    • H01Q19/021—Means for reducing undesirable effects
    • H01Q19/023—Means for reducing undesirable effects for reducing the scattering of mounting structures, e.g. of the struts

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Laminated Bodies (AREA)

Abstract

1,162,312. Laminated structural members. TECHNOLOGY, MINISTER OF. 26 Jan., 1968 [16 Feb., 1967], No. 7515/67. Heading B5N. [Also in Division H4] In an aerial assembly, structural supporting struts in front of a reflector thereof are made with a core of rigid foamed plastics material bonded on opposite sides to strips or flanges of higher tensile strength material, the planes of said strips or flanges being substantially parallel to the direction of wave propagation. As described, a Cassegrain type aerial comprises a main reflector 1 and a sub-reflector 2 which is supported by three struts 3 extending from the perimeter of the reflector 1. Each strut has a core 7 of expanded polystyrene or similar material to which are bonded two strips 8 made, for example, of steel or aluminium or marine plywood. Bonding may be effected by an epoxy resin adhesive or an impact adhesive, and the exposed surfaces of the core material may be treated with a water repellent coating.
GB751567A 1967-02-16 1967-02-16 Improvements in or relating to Microwave Aerial Assemblies Expired GB1162312A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB751567A GB1162312A (en) 1967-02-16 1967-02-16 Improvements in or relating to Microwave Aerial Assemblies

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB751567A GB1162312A (en) 1967-02-16 1967-02-16 Improvements in or relating to Microwave Aerial Assemblies

Publications (1)

Publication Number Publication Date
GB1162312A true GB1162312A (en) 1969-08-27

Family

ID=9834608

Family Applications (1)

Application Number Title Priority Date Filing Date
GB751567A Expired GB1162312A (en) 1967-02-16 1967-02-16 Improvements in or relating to Microwave Aerial Assemblies

Country Status (1)

Country Link
GB (1) GB1162312A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1984004209A1 (en) * 1983-04-18 1984-10-25 Hughes Aircraft Co Antenna structure
GB2145569A (en) * 1980-06-03 1985-03-27 Mitsubishi Electric Corp Reflector antenna
DE4200755A1 (en) * 1992-01-14 1993-07-15 Siemens Ag Centrally fed, two-reflector, microwave directional antenna - has coaxial, primary horn radiator with toroidal annular aperture with parallel polarised field

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2145569A (en) * 1980-06-03 1985-03-27 Mitsubishi Electric Corp Reflector antenna
WO1984004209A1 (en) * 1983-04-18 1984-10-25 Hughes Aircraft Co Antenna structure
US4636801A (en) * 1983-04-18 1987-01-13 Hughes Aircraft Company Multiple reflector system with dielectric support webs and foam body
DE4200755A1 (en) * 1992-01-14 1993-07-15 Siemens Ag Centrally fed, two-reflector, microwave directional antenna - has coaxial, primary horn radiator with toroidal annular aperture with parallel polarised field

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Legal Events

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