GB1278913A - Cables - Google Patents

Cables

Info

Publication number
GB1278913A
GB1278913A GB7543/71A GB754371A GB1278913A GB 1278913 A GB1278913 A GB 1278913A GB 7543/71 A GB7543/71 A GB 7543/71A GB 754371 A GB754371 A GB 754371A GB 1278913 A GB1278913 A GB 1278913A
Authority
GB
United Kingdom
Prior art keywords
insulation
inner conductor
conductor
strip
parabola
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
GB7543/71A
Inventor
Lyndon Reginald Spicer
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB7543/71A priority Critical patent/GB1278913A/en
Publication of GB1278913A publication Critical patent/GB1278913A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/203—Leaky coaxial lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/28—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium using the near field of leaky cables, e.g. of leaky coaxial cables

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Insulated Conductors (AREA)

Abstract

1278913 Extruded conductor insulation STANDARD TELEPHONES & CABLES Ltd 23 March 1971 7543/71 Heading B5A [Also in Divisions H1 and H4] A cable transmission line, which may be used for radio communication with trains or other moving vehicles, comprises an outer conductive strip 13, Fig. 2, which is longitudinally formed to a substantially parabolic cross-section, and an inner conductor 11 which is positioned at the focus of the parabola and which is insulated from said outer conductor. The inner conductor may have a circular or rectangular cross-section, the longer sides of said rectangle being parallel to the axis of the parabola (Fig. 3, not shown). The inner conductor may be embedded in polyethylene insulation 12 by an extrusion process, said insulation being shaped to fit in the formed strip 13. A groove 18, Fig. 4, is provided at the apex into which a continuity wire 14 fits, to provide an electrical path in case of fracture of the strip 13. A polyethylene sheathing 15 is extruded over the assembled conductors, continuity wire, and insulation. A base portion 16 allows the cable transmission line to be mounted for example, in a railway tunnel.
GB7543/71A 1971-03-23 1971-03-23 Cables Expired GB1278913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7543/71A GB1278913A (en) 1971-03-23 1971-03-23 Cables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7543/71A GB1278913A (en) 1971-03-23 1971-03-23 Cables

Publications (1)

Publication Number Publication Date
GB1278913A true GB1278913A (en) 1972-06-21

Family

ID=9835134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7543/71A Expired GB1278913A (en) 1971-03-23 1971-03-23 Cables

Country Status (1)

Country Link
GB (1) GB1278913A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182829A1 (en) * 1972-03-01 1973-12-14 Kabel Metallwerke Ghh
FR2219866A2 (en) * 1973-03-02 1974-09-27 Kabel Metallwerke Ghh
EP0862241A2 (en) * 1997-02-28 1998-09-02 Andrew A.G. Strip-type radiating cable for a communications system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2182829A1 (en) * 1972-03-01 1973-12-14 Kabel Metallwerke Ghh
FR2219866A2 (en) * 1973-03-02 1974-09-27 Kabel Metallwerke Ghh
EP0862241A2 (en) * 1997-02-28 1998-09-02 Andrew A.G. Strip-type radiating cable for a communications system
EP0862241A3 (en) * 1997-02-28 2000-07-05 Andrew A.G. Strip-type radiating cable for a communications system

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee