EP0694986B1 - Abstrahlendes Koaxialkabel - Google Patents

Abstrahlendes Koaxialkabel Download PDF

Info

Publication number
EP0694986B1
EP0694986B1 EP95810481A EP95810481A EP0694986B1 EP 0694986 B1 EP0694986 B1 EP 0694986B1 EP 95810481 A EP95810481 A EP 95810481A EP 95810481 A EP95810481 A EP 95810481A EP 0694986 B1 EP0694986 B1 EP 0694986B1
Authority
EP
European Patent Office
Prior art keywords
windows
cable
series
cable according
distances
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 - Lifetime
Application number
EP95810481A
Other languages
English (en)
French (fr)
Other versions
EP0694986A1 (de
Inventor
Erich Scherz
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel SA
Nokia Inc
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 Alcatel SA, Nokia Inc filed Critical Alcatel SA
Publication of EP0694986A1 publication Critical patent/EP0694986A1/de
Application granted granted Critical
Publication of EP0694986B1 publication Critical patent/EP0694986B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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

Definitions

  • the present invention relates to a radiating coaxial cable for communications mobile, especially in tunnels, this cable comprising a central conductor embedded in a layer of insulating material, this layer being entirely surrounded a sheet of conductive material provided with windows and an insulating sheath protective exterior, said windows being grouped by series.
  • radiating cables have the particularity of radiate high frequency energy not in a punctual way like a antenna, but over the entire length of the cable. They consist of a coaxial cable the outer conductive coating of which is provided with openings or windows allowing the passage of the high frequency wave in both directions. In other words, the existence of these windows allows high frequency energy to exit the cable to be received by a mobile receiver. Conversely, the high frequency energy emitted by a mobile transmitter can be picked up by cable through said windows.
  • the transmission loss that is to say the attenuation of the signal by cable length unit and, on the other hand, the coupling loss which is the average difference between the signal level in the cable and the received signal level through the antenna.
  • the present invention proposes to overcome all of the drawbacks of cables known and provide an efficient and reliable cable, suitable for all kinds environments and whose technical characteristics are only weakly influenced by external parameters specific to the site in which it is placed, and all especially when immersed in water.
  • the cable according to the invention characterized in that said windows are grouped by series, and in that the distances between the series of windows are random and all different from each other, these distances being at least a hundred times the spaces between two adjacent windows.
  • said windows are arranged at least on a line parallel to the axis of the cable.
  • the number of windows of each series are identical and the windows of the same series are regularly spaced.
  • the windows all have the same oblong shape and are arranged along axes perpendicular to the longitudinal axis of the cable.
  • the height of the windows, in a direction perpendicular to the longitudinal axis of the cable is substantially equal to the space between the axes vertical of two windows of the same series.
  • the number of windows in a series can be equal to six.
  • the distances between the series of windows are determined by a random number generator.
  • the distances are integer multiples which are all different from said spaces.
  • the height of the windows is at least equal to the diameter of the layer of insulating material.
  • the cable 10 shown is of the coaxial type and has a central conductor 11 embedded in a coaxial layer 12 of an insulating material, this the latter being entirely surrounded by a sheet 13 of a conductive material, in particular a continuous metal sheet bonded to the overlapping edges, the assembly being externally coated with an insulating sheath 14.
  • the metal sheet 13 is provided with windows 17. These windows are arranged on a line parallel to the axis of the cable and grouped by series F 1 , F 2 , F 3 ,. .. F i over the entire length of the cable.
  • these series of windows are spaced irregularly, that is to say that the distances which separate two consecutive series of windows, namely the distance between the series F i and the series F i + 1 and that between the series F n and the series F n + 1 , are all different from each other, but at least a hundred times greater than the spaces which separate two adjacent windows by being integer multiples of these spaces.
  • the windows are produced by determining the successive distances between two series of windows by a random number generator.
  • the windows themselves have an oblong shape, for example elliptical (see Figure 2) or rectangular (see Figure 3).
  • the most large, i.e. the height of the window is preferably oriented perpendicular to the longitudinal axis of the cable and at least equal to the diameter of the layer of insulating material.
  • the number of windows in each series is advantageously six.
  • the space 1 between the vertical axes of two neighboring windows of the same series is preferably at least approximately equal to the height of each window.
  • the space 1 is approximately equal to the major axis of the ellipse.
  • the space 1 is substantially equal to the length of the rectangle.
  • the number of windows in each series is equal to six.
  • the windows 17 are like previously grouped by series, but the series are arranged on several lines, and in particular two 21, 22 in the variant shown, parallel to the axis of the cable.
  • the distance L which separates the two lines 21 and 22 is at least equal to the height 1 of the windows 17 and more particularly in the variant illustrated by this figure substantially equal to twice this height.
  • the arrangement of windows 17 on each line 21 and 22 is identical.
  • the windows are preferably grouped in sets of six, the distance between each series of windows being random since amplification arranged at the start of the cable. The two reasons that justify this provision are as follows. On the one hand, it makes it possible to avoid points in weakening reflection and on the other hand it allows to guarantee a certain transmission power at the end of the cable while by optimizing the transmission loss factor.
  • this cable offers a coupling factor and a very radiated electromagnetic field constant in the range of 30 to 2,000 MHz and, unlike known cables, does not induce discontinuities or irregularities in coupling in this frequency range. It is because of this practically insensitive to the environment and retains all of its characteristics measured in space after installation in a tunnel.

Landscapes

  • Waveguide Aerials (AREA)
  • Communication Cables (AREA)
  • Insulated Conductors (AREA)

Claims (10)

  1. Koaxiales Lichtleiterkabel für die mobile Datenübertragung insbesondere in Tunnels, wobei das Kabel eine mit einer Schicht aus einem isolierenden Material (12) ummantelte zentrale Ader (11) aufweist, die Schicht vollständig in einer Folie (13) aus einem mit Fenstern und einer äußeren isolierenden Schutzhülle (14) versehenen, leitenden Material eingeschlossen ist, und die Fenster (17) in Reihen (F1, F2, F3 ...) gruppiert sind,
    dadurch gekennzeichnet, daß
    die Abstände (d1, d2, dn ...) zwischen den Fensterreihen zufallsbedingt sind, sich alle voneinander unterscheiden und mindestens hundert Mal größer sind als die Zwischenräume, die zwei benachbarte Fenster voneinander trennen.
  2. Kabel nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Fenster (17) in mindestens einer zur Achse des Kabels parallelen Reihe angeordnet sind.
  3. Kabel nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Anzahl der Fenster (17) jeder Reihe identisch ist.
  4. Kabel nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Fenster einer selben Reihe regelmäßig voneinander beabstandet sind.
  5. Kabel nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Fenster (17) alle dieselbe längliche Form aufweisen und in zur Längsachse des Kabels (10) senkrechten Achsen angeordnet sind.
  6. Kabel nach Anspruch 5,
    dadurch gekennzeichnet, daß
    die Höhe der Fenster (17) in einer zur Längsachse des Kabels senkrechten Richtung praktisch genau gleich dem Zwischenraum (1) ist, der die vertikalen Achsen von zwei Fenstern einer selben Reihe voneinander trennt.
  7. Kabel nach Anspruch 3,
    dadurch gekennzeichnet, daß
    die Anzahl der Fenster (17) einer Reihe sechs beträgt.
  8. Kabel nach Anspruch 3,
    dadurch gekennzeichnet, daß
    die Abstände (d1, d2, dn...) zwischen den Fensterreihen von einem Zufallszahlengenerator festgelegt sind.
  9. Kabel nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Abstände (d1, d2, dn ...) zwischen den Fensterreihen ganze Vielfache sind, die sich alle von den Zwischenräumen unterscheiden, die die benachbarten Fenster voneinander trennen.
  10. Kabel nach Anspruch 1,
    dadurch gekennzeichnet, daß
    die Höhe der Fenster mindestens gleich dem Durchmesser der Schicht aus isolierendem Material (12) ist.
EP95810481A 1994-07-27 1995-07-25 Abstrahlendes Koaxialkabel Expired - Lifetime EP0694986B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9409506 1994-07-27
FR9409506 1994-07-27

Publications (2)

Publication Number Publication Date
EP0694986A1 EP0694986A1 (de) 1996-01-31
EP0694986B1 true EP0694986B1 (de) 2001-08-22

Family

ID=9465945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810481A Expired - Lifetime EP0694986B1 (de) 1994-07-27 1995-07-25 Abstrahlendes Koaxialkabel

Country Status (4)

Country Link
EP (1) EP0694986B1 (de)
AT (1) ATE204682T1 (de)
DE (1) DE69522278T2 (de)
ES (1) ES2161848T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4723380A1 (de) * 2024-10-07 2026-04-08 Kabelwerk Eupen AG Abstrahlendes koaxialkabel

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19738381A1 (de) 1997-09-03 1999-03-04 Alsthom Cge Alcatel Abstrahlendes koaxiales Hochfrequenz-Kabel
DE10260070B4 (de) * 2002-12-19 2006-07-13 Sew-Eurodrive Gmbh & Co. Kg System mit einem elektrischen Kabel
CN116168889A (zh) * 2021-11-25 2023-05-26 华为技术有限公司 漏泄同轴电缆与通信系统

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3691488A (en) * 1970-09-14 1972-09-12 Andrew Corp Radiating coaxial cable and method of manufacture thereof
US4325039A (en) * 1979-10-31 1982-04-13 Bicc Limited Leaky coaxial cable wherein aperture spacings decrease along the length of the cable
GB2236907B (en) * 1989-09-20 1994-04-13 Beam Company Limited Travelling-wave feeder type coaxial slot antenna
DE9318420U1 (de) * 1993-12-02 1994-01-20 Kabelmetal Electro Gmbh, 30179 Hannover Abstrahlendes koaxiales Hochfrequenz-Kabel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4723380A1 (de) * 2024-10-07 2026-04-08 Kabelwerk Eupen AG Abstrahlendes koaxialkabel

Also Published As

Publication number Publication date
ES2161848T3 (es) 2001-12-16
EP0694986A1 (de) 1996-01-31
DE69522278D1 (de) 2001-09-27
DE69522278T2 (de) 2002-05-23
ATE204682T1 (de) 2001-09-15

Similar Documents

Publication Publication Date Title
EP2130266B1 (de) Antenne mit einem resonator mit einer filterungsbeschichtung und system mit einer solchen antenne
FR2693828A1 (fr) Câble pour signaux comportant un écran en polymère recouvert de métal.
EP0964408A1 (de) Informationsübertragungskabel und sein Herstellungsverfahren
EP0694986B1 (de) Abstrahlendes Koaxialkabel
EP0141961B1 (de) Abstrahlendes koaxiales Kabel
EP0019510A1 (de) Drehbare Verbindung für mehrere Leitungen in einer elektromagnetischen Detektionsanlage
EP2006954B1 (de) Kommunikationsgerät für Schienenfahrzeuge
CA1106006A (fr) Guide d'ondes circulaire
FR2947292A1 (fr) Pylone monopole
KR100974712B1 (ko) 시스템 손실을 보상한 누설 동축 케이블
EP1594186B1 (de) Bodenantenne mit Schleife zur Abstrahlung kilometrischer oder hektometrischer Wellen
EP1163682B1 (de) Strahlendes kabel
EP4174880A1 (de) Stromkabel mit mehreren elektronischen hochfrequenzidentifikationsvorrichtungen und herstellungsverfahren dafür
FR2723210A1 (fr) Procede et dispositif antidetection pour radar
EP2148336B1 (de) Energiekabel, das speziell für die Hochgeschwindigkeitsübertragung von Daten konzipiert wurde
EP1025620B1 (de) Abstrahlendes koaxialkabel
EP1016165B1 (de) Strahlendes kabel
CH691095A5 (fr) Câble électrique de transmission haute fréquence.
EP2092597A1 (de) Antennennetzwerk mit kilometrischer oder hektometrischer fortlaufender bodenwelle
EP1175711B1 (de) Leckkabelübertraggungssystem für eine gesteuerte funkversorgung in einem bestimmtem volumem
EP2888784B1 (de) Induktives oberflächenelement
FR2690280A1 (fr) Dispositif rayonnant à large bande passante.
FR3078435A1 (fr) Cable de communication et de transmission multimedia
FR2650128A1 (fr) Dispositif de reduction du bruit eolien des lignes aeriennes
FR3119491A1 (fr) Systeme de reduction de la reflectivite d'une onde electromagnetique incidente sur une surface et dispositif mettant en oeuvre ce systeme

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR IT LI

17P Request for examination filed

Effective date: 19960723

17Q First examination report despatched

Effective date: 19990429

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ALCATEL

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR IT LI

REF Corresponds to:

Ref document number: 204682

Country of ref document: AT

Date of ref document: 20010915

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 69522278

Country of ref document: DE

Date of ref document: 20010927

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2161848

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020731

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020731

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020731

26N No opposition filed
BERE Be: lapsed

Owner name: *ALCATEL

Effective date: 20020731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20030331

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 20040701

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040715

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20040716

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050725

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050726

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060201

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20050726