GB1158882A - Improvements in or relating to Radar Aerials - Google Patents

Improvements in or relating to Radar Aerials

Info

Publication number
GB1158882A
GB1158882A GB5047965A GB5047965A GB1158882A GB 1158882 A GB1158882 A GB 1158882A GB 5047965 A GB5047965 A GB 5047965A GB 5047965 A GB5047965 A GB 5047965A GB 1158882 A GB1158882 A GB 1158882A
Authority
GB
United Kingdom
Prior art keywords
nov
panels
aerials
extend
relating
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
GB5047965A
Inventor
Clement John Richards
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.)
Plessey Co Ltd
Original Assignee
Plessey 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB5047965A priority Critical patent/GB1158882A/en
Publication of GB1158882A publication Critical patent/GB1158882A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/16—Reflecting surfaces; Equivalent structures curved in two dimensions, e.g. paraboloidal
    • H01Q15/161—Collapsible reflectors
    • H01Q15/163—Collapsible reflectors inflatable

Landscapes

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

Abstract

1,158,882. Aerials. PLESSEY CO. Ltd. 11 Nov., 1966 [26 Nov., 1965], No. 50479/65. Heading H4A. An aerial comprises a reflector constituted by metallized fibreglass panels 1 supported on the front surface of an inflatable backing structure 2 which is made up of a number of intercommunicating cells of circular cross-sections whose axes extend as circular arcs about a rotational axis 3. The panels 1 are two-dimensionally curved and are held in their correct positions by means of stems (4), Fig. 2 (not shown), with universal joints (6), which extend from the structure (2). A box-shaped part 7, Fig. 1, serves as an anchorage for the structure 2 and as a container for it when deflated. A part 8 extends from the part 7 towards the axis 3, and a further extension 9 carries a primary feed unit 10. Wall portions 11 of the part 7 may be folded down on hinges 12 out of the way of radiation. Nylon guy ropes 13 may be provided between the structure 2 and the base.
GB5047965A 1965-11-26 1965-11-26 Improvements in or relating to Radar Aerials Expired GB1158882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5047965A GB1158882A (en) 1965-11-26 1965-11-26 Improvements in or relating to Radar Aerials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5047965A GB1158882A (en) 1965-11-26 1965-11-26 Improvements in or relating to Radar Aerials

Publications (1)

Publication Number Publication Date
GB1158882A true GB1158882A (en) 1969-07-23

Family

ID=10456040

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5047965A Expired GB1158882A (en) 1965-11-26 1965-11-26 Improvements in or relating to Radar Aerials

Country Status (1)

Country Link
GB (1) GB1158882A (en)

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Legal Events

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