EP0643438B1 - Abstrahlendes koaxiales Hochfrequenzkabel - Google Patents
Abstrahlendes koaxiales Hochfrequenzkabel Download PDFInfo
- Publication number
- EP0643438B1 EP0643438B1 EP94110855A EP94110855A EP0643438B1 EP 0643438 B1 EP0643438 B1 EP 0643438B1 EP 94110855 A EP94110855 A EP 94110855A EP 94110855 A EP94110855 A EP 94110855A EP 0643438 B1 EP0643438 B1 EP 0643438B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- period length
- cable
- slots
- sections
- constant
- 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
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 is concerned with a radiating coaxial radio frequency cable with openings in the outer conductor, which is considered to be substantially perpendicular to the Cable axis arranged slots are formed.
- Cables of the generic type are well known because of the outside through the slots in the outer conductor they act on urgent electromagnetic energy practical as antennas that allow communication between mobile receivers and fixed transmitter enable. Looking at the slot configuration above the entire cable length, then it is practically a series of antennas connected in series, the one Cause radiation field in the vicinity of the cable. How already known (DE-A1-41 06 890 or corresponding EP-A1-0 502 337) results however along the cable due to the natural cable loss and the radiation a decrease in the intensity of the radiated power over the cable length. In practice this means that the system damping is approximately between one Vehicle and the radiating cable from the entry point the radio frequency energy in the cable along the Cable length increases.
- the steps of the invention lead in addition to Increase the range of data transmission at the same time to reduce the signal variations as well to reduce the signal dynamics on the mobile Participant or transmitter.
- Increasing the maximum length of the radiating high-frequency cable with compensated Line loss leads to increased flexibility in the Coordination of the respective properties of the Transmission system.
- Known cable constructions of the generic type Embodiments have e.g. B. an inner conductor, a this enclosing plastic insulation and a outer conductor arranged above it, which a certain Distribution at openings for the exit of the Radiation energy provides. Then applied a plastic outer jacket (GB 20 62 359 A).
- GB 21 27 621 A looks over the extruded insulation of the inner conductor tape wrapping applied in two layers is, with the turns of each layer applied with a gap are so that through openings are formed, through which the electromagnetic energy to the outside can kick. Since these constructions apart from the selected configuration of the openings in the outer conductor today's requirements regarding lower Dielectric constants, bending properties, Longitudinal watertightness etc.
- the radiating High-frequency cable from a concentric to the inner conductor arranged and by spacers to the inner conductor in its location held plastic tube that the band-shaped, slotted outer conductor carries.
- a spacer e.g. B. washers sprayed onto the inner conductor are used, over which then a thin plastic tube is extruded, forms in the longitudinal direction of the cable self-contained one behind the other Air chambers that are among the good electrical and mechanical properties of a cable according to the invention contribute.
- the outer conductor of the radiating cable consists of a copper tape that insulates the Inner conductor, advantageous in carrying out the invention a sprayed over an annular spacer Plastic pipe, is applied.
- the conductor already contains the tape for this slot configuration required for certain cable type
- the tape runs lengthways around the plastic tube laid around, advantageously so far that the band edges overlap each other so that even with strong bends the cable by unfolding the band edges none Damage occurs. For this reason you can too go to the overlapping band edges mechanically with each other, for example by gluing or soldering connect.
- FIGS. 1 to 7 illustrated embodiments explained in more detail.
- a radiating coaxial High-frequency cable also known as leakage cable, for Data transfer between stationary and mobile Units and vice versa, for example for arrangement in a train tunnel.
- a cable consists of the Inner conductor 1, for example in the form of a one Polyethylene strand 2 folded metal tape, preferably made of copper, as well as at intervals on the Inner conductor 1 arranged spacer washer 3, about which is a tubular shell 4 made of a thermoplastic Material, for example polyethylene is extruded. Be conditioned by this constructive structure air-filled self-contained chambers 5 formed at the same time a longitudinal water tightness of the cable guarantee.
- the outer conductor 6, in the present Embodiment one with the corresponding Configuration of slots 7 pre-punched copper tape, is wrapped around the insulating sleeve 4, so that the band edges overlap each other in their the edges are overlapped, for example Gluing, soldering or welding held.
- the outer jacket 8 is used for mechanical protection abrasion-resistant plastic, possibly also in flame retardant design.
- the cable according to the invention offers itself insofar as, as shown, inside the Plastic core 2 is an optical element, for example a hollow fiber 9 containing optical fibers is arranged is.
- the course of the line loss ⁇ L or the coupling loss ⁇ K in FIG. 2 is that of a so-called standard cable (S) with the same number of slots and the same period length. Because of the rapidly increasing system attenuation from the entry point (SP) of the cable, only relatively short lengths can be bridged with this cable.
- V Vario cable
- P Different number of slots per cable Period length on.
- the outer conductor has a slot in the first section in the following sections follow two, four, eight and sixteen slots.
- the number of slots becomes the increasing attenuation along the cable according to the sawtooth curve original value increased, with only gently sloping System attenuation can be used to lengthen the received field strength of the cable are kept constant in the first approximation.
- Such an embodiment is the subject of the previous one Patent application DE-OS 41 06 890.
- FIG. 3 shows an embodiment of the invention as a so-called double-vario cable (DV) with a different number of slots and a different period length.
- the individual sections along the cable each have a slot in the first three sections, followed by two, four, eight and two sixteen slots.
- the period length also varies here with P 1 , P 2 , P 3 and P 4 .
- FIG. 7 finally shows a slot configuration in which in the first First keep the number of slots and the Period length is reduced and then itself both slot number and period length steady if also change in the opposite sense.
Landscapes
- Waveguide Aerials (AREA)
- Communication Cables (AREA)
- Aerials With Secondary Devices (AREA)
- Near-Field Transmission Systems (AREA)
Description
Claims (8)
- Abstrahlendes koaxiales Hochfrequenzkabel mit Öffnungen im Außenleiter, die als im wesentlichen senkrecht zur Kabelachse angeordnete Schlitze ausgebildet sind, dadurch gekennzeichnet, daß längs des Kabels Abschnitte mit periodisch sich wiederholender Schlitzkonfiguration vorgesehen sind, die sich bei gleichbleibender Schlitzzahl pro Periodenlänge in der Periodenlänge und/oder bei gleichbleibender Periodenlänge in der Schlitzzahl pro Periodenlänge unterscheiden.
- Hochfrequenzkabel nach Anspruch 1, bei dem sich die Abschnitte bei gleichbleibender Schlitzzahl pro Periodenlänge in der Periodenlänge unterscheiden, dadurch gekennzeichnet, daß die Periodenlänge vom Speisepunkt des Kabels aus gesehen längs des Kabels abnimmt.
- Hochfrequenzkabel nach Anspruch 2, dadurch gekennzeichnet, daß die Periodenlänge längs des Kabels in gleichmäßigen Schritten abnimmt.
- Hochfrequenzkabel nach Anspruch 2, dadurch gekennzeichnet, daß mit abnehmender Periodenlänge die Anzahl der Schlitze zunimmt.
- Hochfrequenzkabel nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß längs des Kabels Abschnitte mit gleichbleibender Schlitzzahl pro Periodenlänge bei unterschiedlicher Periodenlänge und gleichbleibender Periodenlänge bei unterschiedlicher Schlitzzahl pro Periodenlänge einander abwechseln.
- Hochfrequenzkabel nach Anspruch 1 oder einem der folgenden, dadurch gekennzeichnet, daß sich vom Speisepunkt des Kabels aus gesehen an periodisch wiederkehrende Abschnitte abnehmender Periodenlänge mit gleichbleibender Schlitzzahl Abschnitte gleichbleibender Periodenlänge mit wachsender Schlitzzahl anschließen, denen zum Kabelende hin wieder Abschnitte abnehmender Periodenlänge mit gleichbleibender Schlitzzahl folgen.
- Hochfrequenzkabel nach Anspruch 1 oder einem der folgenden, gekennzeichnet durch ein konzentrisch zum Innenleiter angeordnetes und durch Abstandshalter zum Innenleiter in seiner Lage gehaltenes Kunststoffrohr, das den bandförmigen, Schlitze aufweisenden Außenleiter trägt.
- Hochfrequenzkabel nach Anspruch 7, dadurch gekennzeichnet, daß die Bandkanten des Außenleiters in Achsrichtung des Kabels verlaufen und einander überlappen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4331171A DE4331171A1 (de) | 1993-09-14 | 1993-09-14 | Abstrahlendes koaxiales Hochfrequenzkabel |
DE4331171 | 1993-09-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0643438A1 EP0643438A1 (de) | 1995-03-15 |
EP0643438B1 true EP0643438B1 (de) | 1998-09-02 |
Family
ID=6497681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94110855A Expired - Lifetime EP0643438B1 (de) | 1993-09-14 | 1994-07-13 | Abstrahlendes koaxiales Hochfrequenzkabel |
Country Status (11)
Country | Link |
---|---|
US (1) | US5467066A (de) |
EP (1) | EP0643438B1 (de) |
JP (1) | JPH07154132A (de) |
AT (1) | ATE170670T1 (de) |
AU (1) | AU677411B2 (de) |
CA (1) | CA2131953C (de) |
DE (2) | DE4331171A1 (de) |
ES (1) | ES2123688T3 (de) |
FI (1) | FI944230A (de) |
NO (1) | NO306966B1 (de) |
TR (1) | TR27801A (de) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19503744C2 (de) * | 1995-02-04 | 1998-05-14 | Alcatel Kabel Ag | Anordnung zur Übertragung, zur Abstrahlung und zum Empfang von Hochfrequenz-Signalen |
DE19738381A1 (de) * | 1997-09-03 | 1999-03-04 | Alsthom Cge Alcatel | Abstrahlendes koaxiales Hochfrequenz-Kabel |
US5898350A (en) * | 1997-11-13 | 1999-04-27 | Radio Frequency Systems, Inc. | Radiating coaxial cable and method for making the same |
US6292072B1 (en) * | 1998-12-08 | 2001-09-18 | Times Microwave Systems, Division Of Smith Industries Aerospace And Defense Systems, Inc. | Radiating coaxial cable having groups of spaced apertures for generating a surface wave at a low frequencies and a combination of surface and radiated waves at higher frequencies |
KR100793499B1 (ko) * | 2006-02-14 | 2008-01-14 | 엘에스전선 주식회사 | 수직편파 방사 모드 동축 케이블 |
KR100761597B1 (ko) * | 2006-02-15 | 2007-09-27 | 엘에스전선 주식회사 | 광대역 누설 동축 케이블 |
JP2007311233A (ja) * | 2006-05-19 | 2007-11-29 | Yazaki Corp | シールド電線 |
JP4207998B2 (ja) * | 2006-08-07 | 2009-01-14 | ソニー株式会社 | フラットケーブル装置 |
DE102006045940A1 (de) * | 2006-09-28 | 2008-04-03 | Vega Grieshaber Kg | Abstandshalter für Koaxialinnenleiter |
KR100834608B1 (ko) * | 2007-05-25 | 2008-06-02 | 엘에스전선 주식회사 | 수평편파 특성의 광대역 누설동축케이블 |
CN101521057B (zh) * | 2008-02-27 | 2012-07-04 | 赵明慧 | 音频传输线 |
EP2871708B1 (de) | 2013-11-07 | 2021-06-16 | Swisscom AG | Kommunikationskabel mit Beleuchtung |
BR112017020741A2 (pt) | 2015-04-03 | 2018-07-17 | Wlanjv Inc | sistema de antenas distribuídas de múltiplos serviços |
EP3382799B1 (de) * | 2017-03-27 | 2020-01-15 | Nokia Shanghai Bell Co., Ltd. | Abstrahlendes kabel und verfahren zur herstellung eines abstrahlenden kabels |
JP6555791B1 (ja) * | 2019-03-12 | 2019-08-07 | ヨメテル株式会社 | ケーブルアンテナ |
RU198345U1 (ru) * | 2019-12-03 | 2020-07-02 | Общество с ограниченной ответственностью "Радиочастотные Компоненты" (ООО "РЧ Компоненты") | Излучающий кабель для передачи радиочастотных электромагнитных сигналов |
RU2763877C2 (ru) * | 2019-12-03 | 2022-01-11 | Владислав Владимирович Балалаев | Способ передачи радиочастотных электромагнитных сигналов, система для осуществления способа, способ монтажа системы, объект, в котором смонтирована система, излучающий кабель для системы и способ его производства |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2756421A (en) * | 1946-01-05 | 1956-07-24 | George G Harvey | Beacon antenna |
US3106713A (en) * | 1962-01-26 | 1963-10-08 | Furukawa Electric Co Ltd | Slot antenna having short radiating slots and long nonradiating distributed capacitance tuning slot |
US3691488A (en) * | 1970-09-14 | 1972-09-12 | Andrew Corp | Radiating coaxial cable and method of manufacture thereof |
US3781725A (en) * | 1972-05-04 | 1973-12-25 | Sumitomo Electric Industries | Leaky coaxial cable |
BE834291A (fr) * | 1975-10-07 | 1976-02-02 | Systeme de radiocommunications pour milieux confines | |
DE2812523A1 (de) * | 1978-03-22 | 1979-09-27 | Kabel Metallwerke Ghh | Abstrahlendes koaxiales hochfrequenz-kabel |
US4325039A (en) * | 1979-10-31 | 1982-04-13 | Bicc Limited | Leaky coaxial cable wherein aperture spacings decrease along the length of the cable |
DE3844292A1 (de) * | 1988-12-30 | 1990-07-05 | Rheydt Kabelwerk Ag | Anordnung zum uebertragen von hochfrequenzsignalen |
AU629985B2 (en) * | 1989-11-16 | 1992-10-15 | Andrew Corporation | Radiating coaxial cable with improved water-blocking characteristics |
DE4106890A1 (de) * | 1991-03-05 | 1992-09-10 | Rheydt Kabelwerk Ag | Strahlendes hochfrequenzkabel |
US5381511A (en) * | 1993-06-02 | 1995-01-10 | W. L. Gore & Associates, Inc. | Flexible electrically heatable hose |
-
1993
- 1993-09-14 DE DE4331171A patent/DE4331171A1/de not_active Withdrawn
-
1994
- 1994-07-13 EP EP94110855A patent/EP0643438B1/de not_active Expired - Lifetime
- 1994-07-13 DE DE59406819T patent/DE59406819D1/de not_active Expired - Lifetime
- 1994-07-13 ES ES94110855T patent/ES2123688T3/es not_active Expired - Lifetime
- 1994-07-13 AT AT94110855T patent/ATE170670T1/de not_active IP Right Cessation
- 1994-08-22 TR TR00814/94A patent/TR27801A/xx unknown
- 1994-09-13 US US08/305,149 patent/US5467066A/en not_active Expired - Lifetime
- 1994-09-13 JP JP6219014A patent/JPH07154132A/ja active Pending
- 1994-09-13 NO NO943395A patent/NO306966B1/no unknown
- 1994-09-13 CA CA002131953A patent/CA2131953C/en not_active Expired - Fee Related
- 1994-09-13 AU AU72950/94A patent/AU677411B2/en not_active Ceased
- 1994-09-13 FI FI944230A patent/FI944230A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
EP0643438A1 (de) | 1995-03-15 |
DE4331171A1 (de) | 1995-03-16 |
CA2131953C (en) | 1998-12-15 |
FI944230A (fi) | 1995-03-15 |
CA2131953A1 (en) | 1995-03-15 |
US5467066A (en) | 1995-11-14 |
TR27801A (tr) | 1995-08-29 |
ES2123688T3 (es) | 1999-01-16 |
ATE170670T1 (de) | 1998-09-15 |
NO306966B1 (no) | 2000-01-17 |
AU7295094A (en) | 1995-03-30 |
DE59406819D1 (de) | 1998-10-08 |
NO943395L (no) | 1995-03-15 |
NO943395D0 (no) | 1994-09-13 |
FI944230A0 (fi) | 1994-09-13 |
AU677411B2 (en) | 1997-04-24 |
JPH07154132A (ja) | 1995-06-16 |
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