GB1389335A - Inductive radio transmission lines - Google Patents

Inductive radio transmission lines

Info

Publication number
GB1389335A
GB1389335A GB2527772A GB2527772A GB1389335A GB 1389335 A GB1389335 A GB 1389335A GB 2527772 A GB2527772 A GB 2527772A GB 2527772 A GB2527772 A GB 2527772A GB 1389335 A GB1389335 A GB 1389335A
Authority
GB
United Kingdom
Prior art keywords
parallel grooves
frames
conductors
conductor
pair
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
GB2527772A
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1389335A publication Critical patent/GB1389335A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
    • B61L3/16—Continuous control along the route
    • B61L3/22—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation
    • B61L3/225—Continuous control along the route using magnetic or electrostatic induction; using electromagnetic radiation using separate conductors along the route

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

1389335 Electrical installations SUMITOMO ELECTRIC INDUSTRIES Ltd 30 May 1972 [12 June 1971] 25277/72 Heading H2C An inductive radiotransmission line comprises at least two transmission pairs 1, 2 with a succession of crossover transpositions at, e.g. 4, 5, with equal transposition distance P, but at different locations for each transmission pair. Conductor supports 3 are located between crossing points 4, 5 at intervals P/2 and comprises a pair of metal frames 6 having a channel portion in which is placed an insulator spacer 7 of synthetic material, e.g. polyethylene, have parallel grooves which support conductors 11, 12, 11<SP>1</SP>, 12<SP>1</SP>. The frames 6 are joined by portion 9 which is supported by rod 10 and maintained at ground potential. In a further embodiment, (Fig. 4, not shown), the frame (6) completely encloses the conductors of the two wire lines. In another embodiment (Fig. 5, not shown), the metal frame has several parallel grooves (13) and each conductor is individually insulated.
GB2527772A 1971-06-12 1972-05-30 Inductive radio transmission lines Expired GB1389335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4193671A JPS5412765B1 (en) 1971-06-12 1971-06-12

Publications (1)

Publication Number Publication Date
GB1389335A true GB1389335A (en) 1975-04-03

Family

ID=12622096

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2527772A Expired GB1389335A (en) 1971-06-12 1972-05-30 Inductive radio transmission lines

Country Status (5)

Country Link
US (1) US3809796A (en)
JP (1) JPS5412765B1 (en)
DE (1) DE2228540B2 (en)
FR (1) FR2141816B1 (en)
GB (1) GB1389335A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2494924A1 (en) * 1980-11-21 1982-05-28 Inter Elec Winding former for guide cable in driverless train - uses strip horizontal below train and wound with AC cable switching from one side to other, and held by notches
FR2565190B1 (en) * 1984-06-01 1986-10-10 Matra TRANSMISSION LINES RECEIVING MAT FOR TRAFFIC LANES
CN114340937A (en) * 2019-08-19 2022-04-12 索尤若驱动有限及两合公司 System for contactless transmission of electrical power from a primary conductor to a winding

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL25669C (en) * 1927-03-30
FR1128165A (en) * 1955-06-28 1957-01-03 Rotation and tension balancing device for overhead wires
FR1328411A (en) * 1962-04-16 1963-05-31 Improvements to overhead lines for broadband transmission
US3188378A (en) * 1963-12-05 1965-06-08 Indiana Steel & Wire Company I Transposition fitting

Also Published As

Publication number Publication date
US3809796A (en) 1974-05-07
JPS5412765B1 (en) 1979-05-25
DE2228540B2 (en) 1974-03-21
DE2228540C3 (en) 1974-10-17
DE2228540A1 (en) 1973-01-04
FR2141816B1 (en) 1977-12-23
FR2141816A1 (en) 1973-01-26

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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