NL7310334A - - Google Patents

Info

Publication number
NL7310334A
NL7310334A NL7310334A NL7310334A NL7310334A NL 7310334 A NL7310334 A NL 7310334A NL 7310334 A NL7310334 A NL 7310334A NL 7310334 A NL7310334 A NL 7310334A NL 7310334 A NL7310334 A NL 7310334A
Authority
NL
Netherlands
Application number
NL7310334A
Other versions
NL173337C (nl
NL173337B (nl
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 filed Critical
Publication of NL7310334A publication Critical patent/NL7310334A/xx
Publication of NL173337B publication Critical patent/NL173337B/xx
Application granted granted Critical
Publication of NL173337C publication Critical patent/NL173337C/xx

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
    • H04B5/24—Inductive coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/04—Adaptation for subterranean or subaqueous use
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks
    • 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)
  • Waveguide Aerials (AREA)
  • Details Of Aerials (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Near-Field Transmission Systems (AREA)
  • Communication Cables (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
NLAANVRAGE7310334,A 1970-02-18 1973-07-25 Verbetering van een transmissiemedium voor radiofrequente signalen in tunnels en dergelijke, omvattende een coaxiale kabel voorzien van openingen voor het uitstralen van radio-frequente energie. NL173337C (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE85381 1970-02-18
BE120619 1972-08-03

Publications (3)

Publication Number Publication Date
NL7310334A true NL7310334A (en:Method) 1974-02-05
NL173337B NL173337B (nl) 1983-08-01
NL173337C NL173337C (nl) 1984-01-02

Family

ID=25647495

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7310334,A NL173337C (nl) 1970-02-18 1973-07-25 Verbetering van een transmissiemedium voor radiofrequente signalen in tunnels en dergelijke, omvattende een coaxiale kabel voorzien van openingen voor het uitstralen van radio-frequente energie.

Country Status (8)

Country Link
US (1) US3829767A (en:Method)
JP (1) JPS49132911A (en:Method)
BE (1) BE787158R (en:Method)
DE (1) DE2337949C3 (en:Method)
FR (1) FR2195126B2 (en:Method)
GB (1) GB1434975A (en:Method)
LU (1) LU68137A1 (en:Method)
NL (1) NL173337C (en:Method)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4001774A (en) * 1975-01-08 1977-01-04 Exxon Production Research Company Method of transmitting signals from a drill bit to the surface
US4023136A (en) * 1975-06-09 1977-05-10 Sperry Rand Corporation Borehole telemetry system
US4476574A (en) * 1980-09-17 1984-10-09 The United States Of America As Represented By The United States Department Of Energy Radio frequency communication system utilizing radiating transmission lines
CA1280488C (en) * 1986-11-06 1991-02-19 Control Data Canada Limited Perimeter intrusion detection system with block ranging capability
CA1280487C (en) * 1986-11-06 1991-02-19 Senstar-Stellar Corporation Intrusion detection system
DE102008063458B4 (de) * 2008-12-17 2012-03-15 Siemens Aktiengesellschaft Mantelwellensperre, Magnetresonanztomographie-Einrichtung mit Mantelwellensperre und Verwendung der Mantelwellensperre in einer solchen Einrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2082842A5 (en:Method) * 1970-03-27 1971-12-10 Boulore Christian

Also Published As

Publication number Publication date
FR2195126B2 (en:Method) 1977-05-13
US3829767A (en) 1974-08-13
GB1434975A (en) 1976-05-12
DE2337949A1 (de) 1974-02-21
BE787158R (fr) 1972-12-01
NL173337C (nl) 1984-01-02
LU68137A1 (en:Method) 1973-10-16
DE2337949B2 (de) 1974-08-08
NL173337B (nl) 1983-08-01
FR2195126A2 (en:Method) 1974-03-01
DE2337949C3 (de) 1978-11-30
JPS49132911A (en:Method) 1974-12-20

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Legal Events

Date Code Title Description
BC A request for examination has been filed
V3 Additional patents lapsed at the same time as the main patent