EP1107357A1 - Cable coaxial rayonnant haute fréquence - Google Patents

Cable coaxial rayonnant haute fréquence Download PDF

Info

Publication number
EP1107357A1
EP1107357A1 EP99403001A EP99403001A EP1107357A1 EP 1107357 A1 EP1107357 A1 EP 1107357A1 EP 99403001 A EP99403001 A EP 99403001A EP 99403001 A EP99403001 A EP 99403001A EP 1107357 A1 EP1107357 A1 EP 1107357A1
Authority
EP
European Patent Office
Prior art keywords
cable
slots
sections
outer conductor
ahf
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.)
Ceased
Application number
EP99403001A
Other languages
German (de)
English (en)
Inventor
Karl Schulze-Buxloh
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 CIT SA
Alcatel Lucent SAS
Original Assignee
Alcatel CIT SA
Alcatel SA
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 CIT SA, Alcatel SA filed Critical Alcatel CIT SA
Priority to EP99403001A priority Critical patent/EP1107357A1/fr
Priority to AU56478/00A priority patent/AU5647800A/en
Priority to CN00130963A priority patent/CN1305243A/zh
Priority to NO20006053A priority patent/NO20006053L/no
Priority to US09/725,236 priority patent/US20010002117A1/en
Priority to BR0005635-9A priority patent/BR0005635A/pt
Publication of EP1107357A1 publication Critical patent/EP1107357A1/fr
Ceased 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 invention relates to a radiating coaxial radio frequency cable, consisting of an inner conductor, a dielectric surrounding it and a tubular one arranged above it and concentric with the inner conductor Outer conductor, in which separate openings in the outer conductor Sections are attached in the longitudinal direction of the cable without gaps one behind the other are arranged, in which there is at least one first opening per section and at which the distance between the first openings of two neighboring ones Sections equal to half the wavelength of a first radio frequency to be transmitted is (DE 197 38 381 A1).
  • AHF cables Radiating coaxial high-frequency cables - hereinafter referred to as "AHF cables” -, act because of the openings in the Practically as external conductor external electromagnetic energy Antennas that communicate between each other Enable recipients and transmitters.
  • An essential area of application for AHF cables is the signal transmission in tunnel sections between transmit and Receiving devices and preferably rail vehicles.
  • the AHF cable should enable trouble-free operation even over long lengths. she should therefore ensure a low attenuation of the signals to be transmitted and if possible have no reflection points.
  • the damping is the sum of the by the AHF cable itself determined cable attenuation and the radiation coupling loss arising from HF energy.
  • This is the reception field strength for a receiver moving along the AHF cable can be kept at least approximately constant, for example in the case of the DE 41 06 890 A1 known AHF cable compensation for the influence of Cable loss through a special configuration of slots in the outer conductor of the AHF cable made.
  • the number of slots along the AHF cable increases from the HF feed point according to a specified rule.
  • the outer conductor has been attached one behind the other Sections with different numbers of slots.
  • the resulting size by the As a result, the openings formed become slower with increasing distance from the Feed point of the HF larger. This enables a longer transmission length of the HF cable.
  • the known AHF cable according to the aforementioned DE 197 38 381 A1 is under Maintaining a long transmission length is also suitable for higher frequencies.
  • This AHF cable has slots of different sizes in the outer conductor attached so that the electrically effective size of the formed by the slots Openings with increasing distance from the HF feed point can be enlarged.
  • the arrangement and size of the slots in the outer conductor are with these AHF cables depending on the wavelength of the RF to be transmitted the first transmitting HF - dimensioned. If there are frequencies via such an AHF cable can be transmitted, which are an integer multiple of the first HF, it can be transmitted through Interference can lead to interference in the transmission. This applies in particular to Frequencies whose ranges differ by a factor of "2".
  • the invention is based on the object, the AHF cable described above to further develop that it can also be used for frequencies which are integer Differentiate multiples - especially by a factor of "2".
  • This object is achieved according to the invention in that at least per section a second slot is made in the outer conductor, the distance from the first slot is equal to a quarter of the wavelength of the first RF to be transmitted.
  • each at a distance ⁇ / 4 from the first slot can be done in one wide frequency range can be used without interference. This is especially true for Frequencies that are an integer multiple of the frequency for which the AHF cable is designed in itself.
  • the AHF cable is thus, for example, for both D network in the 900 MHz range (890 - 960 MHz) as well as for the E network in the 1800 range MHz (1715 - 1880 MHz) can be used. These two frequency ranges differ by a factor of "2".
  • Fig. 1 shows a schematic representation of a coaxial AHF cable.
  • Fig. 2 shows a basic, known scheme for the arrangement of slots in Outer conductor of an AHF cable.
  • Fig. 3 shows an arrangement of slots in the outer conductor of an AHF cable according to the invention.
  • Fig. 1 shows an AHF cable, for example for signal transmission between stationary and mobile units can be installed in a train tunnel. It has a Inner conductor 1, a dielectric 2 and a tubular, the inner conductor 1 concentric surrounding outer conductor 3.
  • the outer conductor 3 is, for example, as a longitudinal incoming Metal tape around the dielectric 3 so that the tape edges each other overlap. They can be glued, soldered or welded together, for example be connected. The band edges can also be overlapped without one another be welded.
  • a jacket 4 made of plastic serves as external mechanical protection can also be flame-retardant.
  • Inner conductor 1 and outer conductor 3 are preferably made of copper.
  • the dielectric 2 can be carried out in conventional technology. So it can be a full dielectric that can also be foamed, or around a cavity dielectric with a spiral or trade in disks. Materials are preferably used for the dielectric 2 a small dielectric loss factor, for example polyethylene.
  • the Sheath 4 can consist of polyethylene or polyvinyl chloride, for example.
  • slots 5 are made, the length of which in the circumferential direction illustrated embodiment is greater than its axial width.
  • the outer conductor 3 has a plurality of sections A, which are continuous in the longitudinal direction of the AHF cable lie in a row. There are several sections A with the same number of each Slots 5 arranged directly one behind the other. Because of the slots 5 can outside of AHF cable can be received using a suitable antenna RF energy. It can RF energy into the AHF cable in the opposite direction of transmission be coupled.
  • a unit of length of the AHF cable includes all sections A with the same number of slots 5. Die axial length of sections A depends on the frequency of the in the AHF cable injected RF energy. The higher the frequency, the shorter the sections A. In all applications, the basic design and arrangement of the Slots 5 but be the same. The number of slots 5 per section A is then each time increases when the level of the received signal reaches a predetermined value or has fallen below. This allows the attenuation between the AHF cable and one antenna located or moving outside of the same with great accuracy a predetermined value.
  • Such an AHF cable is for example in of DE 197 38 381 A1 mentioned at the beginning.
  • the AHF cable has 590 sections A with only one slot 5.
  • the slots 5 are at a distance from one another which is half the wavelength of the RF to be transmitted corresponds to ( ⁇ / 2).
  • 530 sections A follow with two slots 5, 440 sections A with four slots 5 and 320 Section A with eight slots 5.
  • Such an AHF cable is, for example, 320 m long. It can be trouble-free and with good efficiency for a particular one Frequency range are used - the first HF - for which the distance of the first slots of sections A are fixed from each other.
  • each section A according to FIG additional slot 6 or a group of slots 6 attached the or the already existing slot 5 or first slot 5 has a distance which corresponds to a quarter of the wavelength of the first RF ( ⁇ / 4).
  • sections A with Only one slot 5 has only one further slot 6 at a distance ⁇ / 4.
  • the Sections A with two slots 5 have two additional slots 6, the first of which has a distance of ⁇ / 4 to the first slot 5.
  • Sections A with four and eight Slots 5 are analogously provided with additional slots 6.
  • Such an AHF cable is interference-free and with good efficiency also for frequencies can be used, which are integer multiples of the first HF, after which the distances ⁇ / 2 and ⁇ / 4 are fixed.
  • Such an AHF cable there are, for example, 565 sections A with two slots each, 541 sections A with four slots each, 506 sections A with eight slots each and 441 sections A with six tooth slots each arranged one behind the other.
  • the AHF cable is, for example, 350 m long.

Landscapes

  • Waveguides (AREA)
  • Communication Cables (AREA)
  • Waveguide Aerials (AREA)
EP99403001A 1999-11-30 1999-11-30 Cable coaxial rayonnant haute fréquence Ceased EP1107357A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP99403001A EP1107357A1 (fr) 1999-11-30 1999-11-30 Cable coaxial rayonnant haute fréquence
AU56478/00A AU5647800A (en) 1999-11-30 2000-09-04 Radiating coaxing high frequency cable
CN00130963A CN1305243A (zh) 1999-11-30 2000-11-22 同轴辐射高频电缆
NO20006053A NO20006053L (no) 1999-11-30 2000-11-29 Utstrålende koaksial höyfrekvenskabel
US09/725,236 US20010002117A1 (en) 1999-11-30 2000-11-29 Radiating coaxial high frequency cable
BR0005635-9A BR0005635A (pt) 1999-11-30 2000-11-30 Cabo coaxial de irradiação de alta frequência

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99403001A EP1107357A1 (fr) 1999-11-30 1999-11-30 Cable coaxial rayonnant haute fréquence

Publications (1)

Publication Number Publication Date
EP1107357A1 true EP1107357A1 (fr) 2001-06-13

Family

ID=8242198

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99403001A Ceased EP1107357A1 (fr) 1999-11-30 1999-11-30 Cable coaxial rayonnant haute fréquence

Country Status (6)

Country Link
US (1) US20010002117A1 (fr)
EP (1) EP1107357A1 (fr)
CN (1) CN1305243A (fr)
AU (1) AU5647800A (fr)
BR (1) BR0005635A (fr)
NO (1) NO20006053L (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7554491B2 (en) * 2006-05-25 2009-06-30 Ohio State University Research Foundation Low profile distributed antenna
US8382385B2 (en) 2011-01-14 2013-02-26 Avago Technologies Fiber Ip (Singapore) Pte. Ltd Optical transceiver module having an electromagnetic interference (EMI) cancellation device disposed therein, and an EMI cancelation method for use in an optical transceiver module
US9270071B2 (en) 2013-03-13 2016-02-23 International Business Machines Corporation Microwave connector with filtering properties
US9300029B2 (en) * 2013-03-15 2016-03-29 International Business Machines Corporation Coaxial transmission line slot filter with absorptive matrix

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276413A (en) * 1991-03-05 1994-01-04 Kabelrheydt Aktiengesellshaft High frequency radiation cable including successive sections having increasing number of openings
DE19738381A1 (de) * 1997-09-03 1999-03-04 Alsthom Cge Alcatel Abstrahlendes koaxiales Hochfrequenz-Kabel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276413A (en) * 1991-03-05 1994-01-04 Kabelrheydt Aktiengesellshaft High frequency radiation cable including successive sections having increasing number of openings
DE19738381A1 (de) * 1997-09-03 1999-03-04 Alsthom Cge Alcatel Abstrahlendes koaxiales Hochfrequenz-Kabel
EP0902499A1 (fr) * 1997-09-03 1999-03-17 Alcatel Cable coaxial haute fréquence rayonnant

Also Published As

Publication number Publication date
NO20006053D0 (no) 2000-11-29
BR0005635A (pt) 2001-11-20
AU5647800A (en) 2001-06-14
NO20006053L (no) 2001-05-31
CN1305243A (zh) 2001-07-25
US20010002117A1 (en) 2001-05-31

Similar Documents

Publication Publication Date Title
DE3789051T2 (de) Eindringmeldesystem.
EP1337001B1 (fr) Dispositif pour la transmission sans contact des signaux électriques et/ou énergie
DE69016177T2 (de) Gemeinsame Dreibandantenne (Funk, AM und FM) für Kraftfahrzeug.
DE3433068C2 (fr)
DE2325481A1 (de) Sendesystem, insbesondere fuer den bergbau und den tunnelbau
EP0502337B1 (fr) Câble rayonnant à haute fréquence
DE2812523A1 (de) Abstrahlendes koaxiales hochfrequenz-kabel
EP0643438B1 (fr) Câble rayonant pour signaux à haute fréquence
EP3210259B1 (fr) Dispositif d'antenne pour applications en champ proche ainsi qu'emploi d'un dispositif d'antenne de ce genre
DE3004882C2 (fr)
DE2555909A1 (de) Einrichtung zur nachrichtenuebertragung bei ortsveraenderlichen objekten
DE1292205B (de) Drahtloses Nachrichten-UEbermittlungssystem zur Nachrichtenuebertragung zwischen einem sich entlang einer Spur bewegenden Fahrzeug und einer feststehenden Station
DE19738381A1 (de) Abstrahlendes koaxiales Hochfrequenz-Kabel
EP0300147B1 (fr) Dispositif pour la transmission de signaux à haute fréquence à câble rayonnant
DE2507191C2 (de) Vorrichtung zur Übertragung von Hochfrequenz-Signalen
EP1107357A1 (fr) Cable coaxial rayonnant haute fréquence
DE10010936B4 (de) Antenne
CH659556A5 (de) Hf-uebertragungseinrichtung fuer tunnel, bergwerke und gebaeude.
DE2104467C3 (de) Elektrische Nachrichtenanlage zur Übertragung hochfrequenter Signale
EP1139491B1 (fr) Cable coaxial rayonnant haute fréquence
DE602006000193T2 (de) Abstrahlendes Koaxialkabel
DE19503440C2 (de) Anordnung zur Übertragung, zur Abstrahlung und zum Empfang von Hochfrequenz-Signalen
DE2501583C2 (de) Vorrichtung zur Übertragung von Hochfrequenz-Signalen zwischen einem ortsfesten Gerät und einem bewegten Fahrzeug
DE2424909C2 (de) Kabelantenne
DE69112537T2 (de) Funkübertragungseinrichtung mit strahlenden Leitungen.

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

17P Request for examination filed

Effective date: 20000517

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

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

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20010828