GB685236A - Improvements in and relating to aerials and their construction - Google Patents

Improvements in and relating to aerials and their construction

Info

Publication number
GB685236A
GB685236A GB2177950A GB2177950A GB685236A GB 685236 A GB685236 A GB 685236A GB 2177950 A GB2177950 A GB 2177950A GB 2177950 A GB2177950 A GB 2177950A GB 685236 A GB685236 A GB 685236A
Authority
GB
United Kingdom
Prior art keywords
ground plane
rods
casting
aerial
antenna
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
GB2177950A
Inventor
Horace Ninian Holbrook
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.)
G S V Marine & Commercial Ltd
Original Assignee
G S V Marine & Commercial 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 G S V Marine & Commercial Ltd filed Critical G S V Marine & Commercial Ltd
Priority to GB2177950A priority Critical patent/GB685236A/en
Publication of GB685236A publication Critical patent/GB685236A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/44—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/44—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions
    • H01Q9/46—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions with rigid elements diverging from single point

Landscapes

  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)

Abstract

685,236. Aerials. G.S.V. (MARINE & COMMERCIAL), Ltd. Aug. 30, 1951 [Sept. 4, 1950], No. 21779/50. Class 40 (vii). An aerial system comprises an artificial ground plane and an upwardly divergent aerial structure including a plurality of rods set at an equal inclination to an axis normal to the ground plane so that their free upper ends lie substantially in a circle. In one embodiment the ground plane comprises four equally spaced rods lying in a horizontal plane and screwed into internally threaded socket pieces mounted in a lower socket casting. Mounted on top of the lower casting but insulated therefrom by a bush of insulating material is an upper casting having threaded holes for the upwardly diverging aerial members. These may be two, three or more rods which preferably make an angle of about 15 degrees with the axis. If desired, each of the rod members may be made with a hinge and retaining collar so that the antenna may be quickly folded up for transport. A coaxial feeder may be led up inside the support post for attachment to the antenna. In an embodiment for attachment to a vehicle roof the ground plane rods are not used, the roof itself acting as a ground plane, Fig. 3 (not shown). Constructional details are described with reference to a sectional view, Fig. 1 (not shown), of the system.
GB2177950A 1950-09-04 1950-09-04 Improvements in and relating to aerials and their construction Expired GB685236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2177950A GB685236A (en) 1950-09-04 1950-09-04 Improvements in and relating to aerials and their construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2177950A GB685236A (en) 1950-09-04 1950-09-04 Improvements in and relating to aerials and their construction

Publications (1)

Publication Number Publication Date
GB685236A true GB685236A (en) 1952-12-31

Family

ID=10168657

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2177950A Expired GB685236A (en) 1950-09-04 1950-09-04 Improvements in and relating to aerials and their construction

Country Status (1)

Country Link
GB (1) GB685236A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609214A1 (en) * 1986-12-30 1988-07-01 Thomson Csf Broadband antenna usable for metre waves
FR2650441A1 (en) * 1988-05-16 1991-02-01 Etu Rech Chimiq Lab Radio antenna with very wide band and low standing-wave ratio

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2609214A1 (en) * 1986-12-30 1988-07-01 Thomson Csf Broadband antenna usable for metre waves
FR2650441A1 (en) * 1988-05-16 1991-02-01 Etu Rech Chimiq Lab Radio antenna with very wide band and low standing-wave ratio
EP0492022A1 (en) * 1988-05-16 1992-07-01 Laboratoire D'etudes Et De Recherches Chimiques L.E.R.C. S.A. Wide band radio antenna with weak stationary wave rating

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