SE8701119L - DEVICE FOR TRADLOS INFORMATION TRANSFER - Google Patents

DEVICE FOR TRADLOS INFORMATION TRANSFER

Info

Publication number
SE8701119L
SE8701119L SE8701119A SE8701119A SE8701119L SE 8701119 L SE8701119 L SE 8701119L SE 8701119 A SE8701119 A SE 8701119A SE 8701119 A SE8701119 A SE 8701119A SE 8701119 L SE8701119 L SE 8701119L
Authority
SE
Sweden
Prior art keywords
tradlos
conductor loop
information transfer
ring
ring current
Prior art date
Application number
SE8701119A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE467438B (en
SE8701119D0 (en
Inventor
R Esprester
W Muller
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of SE8701119D0 publication Critical patent/SE8701119D0/en
Publication of SE8701119L publication Critical patent/SE8701119L/en
Publication of SE467438B publication Critical patent/SE467438B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
    • H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H01Q1/46—Electric supply lines or communication lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • 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
    • H01Q9/02—Non-resonant antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Near-Field Transmission Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

For wireless information transmission by means of electromagnetic waves at an extremely low frequency, it is proposed to produce a periodically alternating ring current on a horizontal, large-mesh conductor loop. The already existing high-voltage supply network of the Federal Railway system is advantageously used to form the conductor loop, in that a plurality of balanced high-voltage lines, which connect the substations of the railway, are combined to form a ring and have an unbalanced ring current applied to them.
SE8701119A 1986-04-03 1987-03-18 DEVICE FOR WIRELESS INFORMATION TRANSMISSION BY EXTREMELY LOW FREQUENCY ELECTROMAGNETIC TRANSMISSIONS SE467438B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863611077 DE3611077C2 (en) 1986-04-03 1986-04-03 Arrangement for the wireless transmission of information by means of electromagnetic waves of extremely low frequencies

Publications (3)

Publication Number Publication Date
SE8701119D0 SE8701119D0 (en) 1987-03-18
SE8701119L true SE8701119L (en) 1987-10-04
SE467438B SE467438B (en) 1992-07-13

Family

ID=6297780

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8701119A SE467438B (en) 1986-04-03 1987-03-18 DEVICE FOR WIRELESS INFORMATION TRANSMISSION BY EXTREMELY LOW FREQUENCY ELECTROMAGNETIC TRANSMISSIONS

Country Status (4)

Country Link
DE (1) DE3611077C2 (en)
DK (1) DK169934B1 (en)
NO (1) NO172016C (en)
SE (1) SE467438B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3705221C2 (en) * 1986-04-08 1994-01-27 Deutsche Aerospace Arrangement for the emission of infrared long waves
DE3704180C2 (en) * 1987-02-11 1995-07-27 Daimler Benz Aerospace Ag Antenna arrangement for the emission of infrared long waves

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE111618C (en) *
DE468479C (en) * 1917-09-13 1928-11-13 Rca Corp Transmitting antenna, especially for directional purposes
DE405584C (en) * 1921-01-20 1924-11-04 Rca Corp Receiving antenna
US1514699A (en) * 1921-08-01 1924-11-11 Earl C Hanson Method and apparatus for wireless control for torpedoes, etc.
DE406535C (en) * 1922-05-31 1924-11-29 Gen Electric Loop antenna for wireless telegraphy
GB524360A (en) * 1939-01-28 1940-08-05 Marconi Wireless Telegraph Co Improvements in or relating to directional aerials and aerial systems
DE909466C (en) * 1952-01-25 1954-04-22 Emi Ltd Antenna arrangement with advancing waves
US3215937A (en) * 1962-08-27 1965-11-02 Control Data Corp Extremely low-frequency antenna
US3268900A (en) * 1964-08-31 1966-08-23 Langine R Waszkiewicz Image loop antenna
DE2511179C2 (en) * 1975-03-14 1982-09-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Arrangement for the wireless transmission of electrical signals in water areas
US3993989A (en) * 1975-05-19 1976-11-23 Trw Inc. ELF communications system using HVDC transmission line as antenna
BE834291A (en) * 1975-10-07 1976-02-02 RADIOCOMMUNICATIONS SYSTEM FOR CONFINED AREAS
US4445123A (en) * 1982-03-04 1984-04-24 Gte Products Corporation Method for establishing a vertical E-field antenna installation

Also Published As

Publication number Publication date
NO871380L (en) 1987-10-05
NO172016B (en) 1993-02-15
NO172016C (en) 1993-05-26
DK165487A (en) 1987-10-04
SE467438B (en) 1992-07-13
SE8701119D0 (en) 1987-03-18
DE3611077A1 (en) 1987-10-15
NO871380D0 (en) 1987-04-02
DK169934B1 (en) 1995-04-03
DK165487D0 (en) 1987-04-01
DE3611077C2 (en) 1997-11-20

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