EP2828862B1 - Câble de transmission de signaux à haute fréquence - Google Patents

Câble de transmission de signaux à haute fréquence Download PDF

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Publication number
EP2828862B1
EP2828862B1 EP13713082.9A EP13713082A EP2828862B1 EP 2828862 B1 EP2828862 B1 EP 2828862B1 EP 13713082 A EP13713082 A EP 13713082A EP 2828862 B1 EP2828862 B1 EP 2828862B1
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EP
European Patent Office
Prior art keywords
signal
stranded
lay length
cable
length
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EP13713082.9A
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German (de)
English (en)
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EP2828862A1 (fr
Inventor
Erwin Köppendörfer
Wolfgang STEUFF
Matthias WICKENHÖFER
Bernd Janssen
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Leoni Kabel GmbH
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Leoni Kabel Holding GmbH
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/02—Cables with twisted pairs or quads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B11/00—Communication cables or conductors
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1808—Construction of the conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0009—Details relating to the conductive cores

Definitions

  • the invention relates to a signal cable, namely a coaxial cable or a balanced signal cable having the features of the preamble of claim 1, or 2, and 3.
  • the invention further relates to the use of such a signal cable for high-frequency signal transmission.
  • Coaxial cables are often used as signal cables for transmitting high-frequency signals, for example in the GHz range. Due to their special construction with a central inner conductor designed as a signal conductor, with the dielectric as well as with a hollow-cylindrical outer conductor formed by one or more shield layers, the interference-free transmission is also made possible by high-frequency, broadband signals. In the case of external interference fields, these are shielded from the shielding layer and do not affect the signal transmission at the inner conductor.
  • symmetrical signal cable are used for signal transmission. These consist of at least one pair of stranded, insulated signal conductors that form a stranded composite. This is surrounded by a shield (Paartubung).
  • the two signal conductors of the pair are driven symmetrically with the signal to be transmitted, in which one signal conductor the original signal and in the other signal conductor an inverted (phase-shifted by 180 °) signal is fed.
  • the level difference between the two signal conductors is evaluated. In the case of an external noise level, this likewise affects the two signal levels in the signal conductors, so that the difference signal remains unaffected.
  • cables are used in which several paired twisted, unshielded wire pairs are side by side in a common cable sheath out.
  • Typical such data cables have, for example, four or more in common guided wire pairs on.
  • Such cables are used, for example, in computer networks as Cat 5 or Cat 6 cables.
  • the so-called crosstalk is known as a disturbing effect, in which the signal transmission in the one pair of wires affects the signal transmission in the other pair of wires.
  • Another approach to avoid or curb the crosstalk behavior provides for individual shielding of a particular adapter pair so that no disturbing influences from the neighbor pair can occur.
  • the present invention seeks to provide a signal cable, namely a coaxial cable or a balanced cable with improved properties, especially in the transmission of high-frequency data signals.
  • the signal cable is designed and intended as a high-frequency signal cable for transmitting signals with a frequency in the gigahertz range, in particular up to about 100 gigahertz.
  • the signal cable is designed either as a coaxial cable or as a balanced signal cable.
  • the coaxial cable generally has a signal conductor designed as an inner conductor, which is surrounded by a dielectric and then by an outer conductor, which is usually formed as a braided shield, which in turn is surrounded by a cable sheath.
  • the symmetrical signal cable has at least one stranded pair of wires, which is formed from two insulated signal conductors and which is surrounded by a shield.
  • the shield surrounds exactly one pair of wires, each pair of wires of the cable is therefore surrounded directly by a Paartransportung.
  • the so-called quad stranding in the case of a symmetrical signal cable is known, in which two pairs of wires forming a signal pair are stranded together.
  • This four-strand composite is also directly surrounded by a shield.
  • the four individual signal conductors are in a square arranged, wherein the diagonally opposite signal conductors each form a signal pair for transmitting a respective data signal.
  • the signal conductor is formed as a stranded conductor consisting of a number of individual stranded wires and the stranded wires are stranded together under a varying lay length.
  • the signal conductors are stranded together at a varying pitch length in a symmetrical signal cable.
  • This embodiment is based on the recognition that even the strictly homogeneous constructed signal cables, as they are already used today for the transmission of signals, for example up to 100 megahertz, for higher frequency signals, for example, greater than 500 megahertz, and especially in the single-digit gigahertz range only conditionally are suitable. Investigations have shown that, despite an exactly homogeneous design of the coaxial cable without form errors, as they are for example in the DE 19 43 229 described, a return loss occurs at defined frequencies.
  • these disturbances are caused by the basic stranding periodicity of the stranded components, that is, either the stranded individual stranded wires of the signal conductor embodied as a stranded conductor or by the signal conductors stranded together in a symmetrical cable.
  • the varying lay length is selected, whereby the return loss occurring at a defined frequency range is reduced or distributed over a larger frequency band.
  • This embodiment with the varying lay length is thus based on the knowledge that periodic structures are introduced directly due to the stranding or Verlitzreaes, despite the homogeneous, trouble-free design of the signal cable without form error in a surprising manner for a high-frequency data transmission, a periodically recurring, regular disturbance represents.
  • These disturbances lead to an increase in the return loss, ie at least one frequency-fixed signal component is increasingly reflected and reflected and thus reduces the transmitted signal power.
  • Return loss is generally understood to mean the ratio of transmitted to reflected power or of injected energy to backscattered energy. The return loss is therefore a measure of backscatter effects in signal propagation in the signal cable. The backscatter effects occur at impurities in the transmission path.
  • the periodic structure introduced by the lay length therefore leads selectively within the signal to a high, peak-like return loss at a defined frequency (wavelength). Due to the varying lay length, this peak is reduced at a defined frequency, so that overall the return loss is reduced at this critical frequency. Due to the variation of the lay length, the return loss as a whole is distributed over a wider frequency range as a result of the disturbances introduced by the stranding. This gives the possibility, for the individual frequencies, the maximum allowable return loss even with high frequency data signals.
  • lay length of a stranded conductor is generally understood to mean the length that a single stranded wire requires due to stranding to complete full wrap (360 degrees) in the longitudinal direction about a strand center. Under varying lay length is therefore understood that the length of distance, which requires a respective individual stranded wire for a 360 degree rotation over the length of the stranded conductor changes. Accordingly, the lay length of the stranded composite also means the length which the individual insulated signal conductor requires for complete wrapping.
  • stranded conductors are preferably referred to as so-called concentric stranded conductors, in which the individual stranded wires have a precisely defined position, so that a regular structure is ensured.
  • one or more layers of individual stranded wires are generally stranded around a strand center.
  • the Litzen scholar itself is usually also a Litzendraht.
  • the central stranded wire is surrounded by six further stranded wires.
  • the stranded conductors can alternatively also be designed as so-called bundle strands. In these multiple individual wires or bundles of wires are ver chandeliergt. In contrast to concentric strands, the individual wires do not assume a precisely defined position within the strand, and there is no fixed order in the position of the individual strands relative to one another.
  • symmetric signal cables are meant cables with at least one conductor pair of isolated signal conductors, which are jointly provided for the transmission of a signal by feeding an original signal and an inverted signal thereto.
  • the conductor pair forms the stranded compound which is surrounded by the shielding.
  • the pair stranding is also a so-called quad stranding, especially the star quad in which two cores (insulated signal conductors), in the star quad the diagonally opposite signal conductors, form the respective conductor pair.
  • the four stranded together in the quad stranding signal conductors form the Verseilverbund, which is surrounded by the shield.
  • the signal cable has a plurality of stranded connections surrounded by a shield, for example a plurality of shielded pairs or star quads or combinations thereof, which are usually surrounded by a further overall shielding.
  • the lay length varies with a predetermined difference value by an average lay length.
  • the beat length therefore varies within a bandwidth formed by the difference value about an average value up and down.
  • the mean stroke length plus the difference value therefore gives a maximum stroke length and the mean stroke length minus the difference value indicates the minimum stroke length. Intermediate values are taken between the maximum and the minimum lay length.
  • the difference value is in the range of 5 to 25 percent and in particular in the range of 10 to 20 percent of the average lay length.
  • the resulting stroke length therefore varies between 80 and 90 percent of the mean stroke length as minimum stroke length up to 110 to 120 percent of the mean stroke length as maximum stroke length.
  • the lay length oscillates about the average lay length, thus increasing alternately continuously up to a maximum lay length and up to a minimum lay length.
  • the change of the lay length is preferably continuous and continuous.
  • the increase and decrease follows in particular a, for example, sinusoidal wave motion.
  • the variation of the lay length can be particularly easy to realize in terms of manufacturing technology.
  • electronically controlled Verlitz- or stranding machines this is done, for example, by a variation of the rotational speed of the so-called Strike when stranding and / or a variation of the take-off speed in the longitudinal direction.
  • a varying lay length can be realized via eccentrically mounted wheels within a drive gear.
  • the lay length therefore changes in particular arbitrarily, preferably randomly. This is achieved, in particular in the case of electronically controlled stranding machines, preferably by a corresponding uneven activation of the stranding machine.
  • the lay length is specified via a random number generator.
  • the average lay length is preferably in the range of 1 to 40 mm, in particular in the range of 5 to 40 mm. Conveniently, the average lay length is generally about 3 to 50 times the diameter of the signal conductor. Due to this selected bandwidth of the average lay length in combination with the selected average lay lengths, a stranded conductor with good return loss properties is achieved, even at high frequencies, starting from the current conventional stranded conductors with the usual lay lengths.
  • the varying stroke length can be characterized by an envelope, which thus indicates the increase or decrease of the stroke length.
  • the envelope itself has a length in the range of a few meters.
  • the envelope may have a maximum length of up to 50 meters but preferably has a significantly shorter length, for example, of only 0.3 meters. In principle, therefore, there is the possibility that, following this length or periodicity of the envelope, a respective lay length is repeated, that is to say repeated with a periodicity which corresponds to the periodicity of the envelope.
  • the selected length of the envelope in the range of a few meters is achieved that at typical cable lengths for which the signal cables are usually used, at most only a few lay lengths repeat identically. Overall, this effectively avoids a high return loss peak.
  • Such signal cables are used, for example, as so-called patch cables in networks. In general, the cable lengths are in the range of a few meters, for example, at a maximum of 30 m and in particular at a maximum of about 15 m.
  • the length of the envelope is characterized by the distance between two zero crossings through the average lay length with increasing lay length.
  • the length of the envelope in a wave-shaped envelope therefore corresponds to the length of the overall wave, for example a sinusoidal wave.
  • the envelope is preferably in each case a symmetrical, for example sinusoidal or serrated wave. This is therefore preferably only stretched. Your maximum and minimum values remain the same.
  • the variation of the length of the envelope is comparatively small and is for example only 5 to 10 percent of an average length of the envelope.
  • Such a varying adjustment of both the lay lengths and the envelope of the lay lengths can be achieved in a particularly simple manner by means of an electronically controlled stranding machine, in particular the take-off speed. Overall, therefore, such a Verseilverbund process technology comparatively easy to produce.
  • the variation of the envelopes can be described by a total envelope.
  • This is preferably likewise defined, for example, by a shaft.
  • the length of the envelope varies continuously around an average value.
  • the length of the total envelope is preferably in the range of several 10 meters and in particular in the range of, for example, 20 to 30 meters. This measure ensures that within the usual cable lengths, for which the present signal cables are used, a repetition of a lay length with the same periodicity is excluded.
  • a uniform variation of the lay length is set by the varying envelopes as well as by the total envelope, which is technically easy to handle.
  • the resulting envelope, in particular the total envelope preferably has no periodicity.
  • the maximum or minimum beat length within two successive envelopes i. the maxima or minima of the envelopes assume different values.
  • the slope of successive envelopes varies. It may also be provided that the degree of increase is different from the degree of decrease within one envelope. The increase or decrease of the lay length between two maxima or minima thus varies.
  • the stranding concept described here with the varying lay length for avoiding or at least reducing the return loss is used according to a first embodiment in coaxial conductors, which have a stranded conductor as a signal conductor.
  • a stranded conductor preferably a single-layer stranded conductor is used, in which therefore only one layer of stranded wires are used, which are stranded for example around a central stranded wire.
  • the stranding of the stranded conductor takes place in a one-step stranding process, since this is particularly cost-effective.
  • the individual layers preferably each have the same direction of impact and lay length.
  • the stranded conductor is conveniently prepared in a single-stage stranding process for cost reasons.
  • the individual stranded wires therefore generally run parallel to one another and therefore each have the same lay length.
  • a stranded conductor is not limited to the application of coaxial cables, but is preferably also used in other high-frequency signal cables with stranded conductors, especially in symmetrical signal cables.
  • the stranding concept described here with the varying lay length is used according to the second embodiment in the stranding of symmetrical signal cables.
  • Such symmetrical signal cables each have a signal pair or a star quad surrounded by a shield. By shielding a reliable protection against disturbing external effects such as the crosstalk is already ensured.
  • Such pairs of wires surrounded by a pair shield are used, for example, in network cables according to Cat 7, Cat 7a and higher.
  • the signal conductors are also correspondingly variable Lay length twisted, as stated above.
  • the individual signal conductors of the stranded composite consist of stranded conductors and both the signal conductors and the individual stranded wires are formed with varying lay length. To reduce the return loss therefore a double stranding optimization is provided.
  • a symmetrical signal cable in the assembled state, it is connected in each case to a feed device and to an evaluation device, wherein an origin signal to be transmitted is fed via the feed device into one signal conductor and an inverted signal into the other signal conductor.
  • the evaluation device is designed to evaluate the level difference between these two signals. This also eliminates additional interfering influences from the outside, since they typically act simultaneously on both signal parts and thus leave the level difference uninfluenced.
  • the shielding in both a coaxial cable and a balanced signal cable is usually formed as a shielding braid.
  • the braid is generally a longitudinally extending hollow body formed by the regular meshing of a plurality of braid strands.
  • the mesh strands themselves consist of a plurality of individual fine strands. Usually, the individual mesh strands are also intertwined under a fixed lay length.
  • the braid or the shield is generally designed such that a particularly uniform shielding takes place to the outside or to the inside. Accordingly, the shield is formed homogeneously and has a constant screen attenuation.
  • double shielded shields which are typically formed of two shielding layers, wherein the one layer is formed for example from the shielding braid and the other layer of a metal foil.
  • the lay length of the individual mesh strands of such a shielding braid varies over the length of the Ablegeflechts.
  • an uneven variation is also preferably provided here.
  • the design of the shielding braid with varying lay length is also possible and provided irrespective of the configuration of the stranded conductor and / or the stranded composite with varying lay length.
  • the signal cable is therefore designed in an expedient embodiment as a high-frequency cable for the transmission of data with a frequency in the gigahertz range, in particular up to about 100 gigahertz.
  • the coaxial cable 2a according to Fig. 1 has a central designed as a stranded conductor 4a inner and signal conductor, which is surrounded concentrically by a dielectric 6 and then by an outer conductor, which is formed by a shield 8 formed by a shielding braid. This is in turn surrounded by a cable sheath 9.
  • the stranded conductor 4 a has a plurality of individual stranded stranded wires 10 stranded together.
  • the individual stranded wires 10 are stranded together so that they each extend along a helix in the longitudinal direction 12 of the stranded conductor 4a.
  • a lay length s is defined by the length in the longitudinal direction 12 that a litz wire 10 requires for a full 360 degree turn.
  • Fig. 2 schematically different lay lengths s of the stranded conductor 4a are shown. Emphasized here is a maximum lay length s max and a minimum lay length s min . As seen from the side view of Fig. 2 can be seen, the lay length s changes over the length of the stranded conductor 4a away.
  • a pair of conductors consists of two insulated signal conductors 4b.
  • the signal conductors 4b are formed by a conductor core 14 and an insulation 16 surrounding it.
  • the conductor core 14 is preferably a full conductor designed as a wire, alternatively a stranded conductor optionally with a constant or variable lay length.
  • the conductor pair is surrounded by a shield 8 and this in turn by a cable sheath 9.
  • the conductor pair forms a stranded composite.
  • auxiliary wire 18 is arranged, which is not absolutely necessary.
  • the signal cable 2b consists in the embodiment of the shielded and surrounded by the cable sheath 9 Verseilverbund. In alternative embodiments, several such units are combined to form a total cable and in particular surrounded by a total shield and a total cable sheath.
  • the signal conductors 4b of the stranding composite are stranded together with a varying lay length s. In the Fig. 2 Therefore, the same situation applies equally to the stranded network.
  • an originating signal D is fed into the one signal conductor 4b and an inverted signal D ', ie phase-shifted by 180 °, is fed into the other signal conductor.
  • the evaluation device the level difference between the signal levels of these signals D, D 'is evaluated.
  • Fig. 5 schematically a side view of the shield 8 formed by a shielding braid is shown.
  • the shield 8 in this case consists of a plurality of intertwined braid strands 24. These are also in turn entangled with a lay length s, as shown schematically in FIG Fig. 3 is shown.
  • the term impact length s is understood to be the length which a respective braid strand 24 requires in order to perform a complete winding (360 °).
  • Fig. 6 to 8 different courses of the varying stroke length s are shown. These apply equally to the stranding of the stranded conductor 4a, the stranded composite and the Ablegeflechts.
  • Fig. 6 First, a uniform variation of the stroke length s is illustrated. This shows on the X-axis the lay length s, which is plotted against the propagation in the x direction and thus in the direction of the longitudinal direction 12. As can be seen, the stroke length s oscillates by an average stroke length s 0 , in each case by a difference value ⁇ s.
  • the stroke length s decreases continuously up to the minimum stroke length s min , in order subsequently to increase again up to the maximum stroke length s max .
  • the lay length s therefore oscillates around the mean lay length s 0, in particular uniformly and in a wave-like manner, as exemplified in US Pat Fig. 4 is shown.
  • the frequency of this oscillating variation is preferably not a multiple of the stranding speed.
  • stranding speed is understood in particular to be the number of revolutions per unit time of the wire or conductor to be stranded during the stranding process.
  • the varying stroke length s is characterized by an envelope E, which is shown in the embodiment in the manner of a sine curve.
  • the envelope E preferably increases in a straight line or falls off in a straight line, is therefore formed approximately zigzag-shaped. Because of in the Fig. 6 shown uniform variation of the stroke length s, the envelope has a fixed periodicity.
  • the envelope E itself varies so that identical lay lengths within different envelopes E are not arranged one below the other at the same periodicity.
  • the length L of the envelope E preferably varies continuously.
  • two envelopes with two different lengths L 1 , L 2 are shown.
  • the variation of the envelope itself also has a period again, so that after a total length L ges again the first envelope starts with the length L 1 .
  • the variation of the individual lengths L, L 2 of the envelope E can in turn be represented by a total envelope not shown here. Their total length corresponds to the illustrated total length L tot .
  • This total length L tot is preferably in the range of 0.3 to 50 meters, whereas the length L of the envelope E is typically in the range of a few meters, for example about 3 meters.
  • the variation of the envelope E is in the range of preferably 5 to 10 percent of the length L of the envelope.
  • non-uniform variation of the lay length s is provided in alternative embodiments, as shown by way of example in FIG Fig. 8 is shown.
  • the lay length s preferably varies randomly or chaotically.
  • the degree of increase or decrease of the lay length s changes over the length x of the signal conductor 2 in the longitudinal direction 12, the degree of increase or decrease of the lay length s. In the illustration according to Fig. 8 this corresponds to the slope of the curve representing the lay length s.
  • Per defined length unit of the signal conductor 2 thus varies the increases or decreases of the lay length s, and in particular in each case based on a predetermined defined absolute value of the lay length s. Therefore, the increasing or decreasing areas between two turning points are always compared.
  • the intensity of the course of the stroke length s shown varies, that is to say the respective maximum values s max and minimum values s min .
  • the dashed lines envelope of the maximum values is therefore not a straight line but a curve, which follows in particular no predetermined function.
  • the stranded conductor 4a has a diameter d.
  • the mean lay length s 0 is typically approximately in the range of 3 to 50 times the strand diameter d. For typical strand diameters d, therefore, the lay length is in the range of about 1 mm to 40 mm.
  • the same characteristic numbers preferably also apply to the stranded composite in the case of the symmetrical signal cable 2b.
  • the middle Shock length s 0 is therefore also preferably approximately in the range of 3 to 50 times the diameter of the respective signal conductor 4b.
  • Fig. 9A shows the situation by way of example with a stranded conductor 4a (or stranded composite) with a constant, uniform lay length s.
  • the profile of the return loss at a frequency f 0 shows a peak which exceeds an allowable value for the return loss.
  • the signal cable 4a, 4b is particularly suitable for high-frequency data transmissions, in particular also in the gigahertz range and preferably up to about 100 gigahertz.

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Claims (15)

  1. Câble de transmission de signal haute-fréquence (2a, 2b) pour la transmission de signaux avec une fréquence dans le domaine du GHz, à savoir un câble de transmission de signal symétrique (2b), dans lequel des conducteurs de transmission de signal isolés (4b) sont toronnés mutuellement par paire et l'ensemble toronné est entouré d'un blindage (8),
    caractérisé
    en ce que pour réduire une atténuation par réflexion, les conducteurs de transmission de signal (4b) sont toronnés mutuellement avec un pas de toronnage (s) variable, et dans le cas d'un toronnage par paire, la paire de brins toronnés est entourée par un blindage de paire.
  2. Câble de transmission de signal haute-fréquence (2a, 2b) pour la transmission de signaux avec une fréquence dans le domaine du GHz, à savoir un câble de transmission de signal symétrique (2b), dans lequel des conducteurs de transmission de signal isolés (4b) sont toronnés mutuellement en un ensemble toronné sous forme de quarte-étoile,
    caractérisé
    en ce que pour réduire une atténuation par réflexion, les conducteurs de transmission de signal (4b) sont toronnés mutuellement avec un pas de toronnage (s) variable.
  3. Câble de transmission de signal haute-fréquence (2a, 2b) pour la transmission de signaux avec une fréquence dans le domaine du GHz, choisis parmi les types de câbles câble coaxial ou câble de transmission de signal symétrique, le câble coaxial présentant un conducteur de transmission de signal (4a) réalisé en tant que conducteur intérieur, et, dans le cas du câble de transmission de signal symétrique (2b), des conducteurs de transmission de signal isolés (4b) sont toronnés mutuellement par paire ou en tant que quarte-étoile pour former un ensemble toronné,
    caractérisé
    en ce que pour réduire une atténuation par réflexion, le conducteur de transmission de signal (4a) est un conducteur torsadé constitué d'un certain nombre de fils individuels torsadés (10), et les fils torsadés (10) sont toronnés mutuellement avec un pas de toronnage (s) variable.
  4. Câble de transmission de signal (2a, 2b) selon la revendication 1, 2 ou la revendication 3,
    caractérisé
    en ce que le pas de toronnage (s) varie d'une valeur de différence (Δs) autour d'un pas de toronnage moyen (s0).
  5. Câble de transmission de signal (2a, 2b) selon l'une des revendications précédentes,
    caractérisé
    en ce que le pas de toronnage (s) varie de manière non régulière.
  6. Câble de transmission de signal (2a, 2b) selon la revendication 4 ou la revendication 5,
    caractérisé
    en ce que le pas de toronnage moyen (s0) se situe dans une plage de 3 à 50 fois le diamètre du conducteur de transmission de signal (4a, 4b), et notamment dans une plage de 1 à 40 mm.
  7. Câble de transmission de signal (2a, 2b) selon l'une des revendications précédentes,
    caractérisé
    en ce que la variation du pas de toronnage est caractérisée par une courbe-enveloppe, qui a une longueur dans le domaine de quelques mètres.
  8. Câble de transmission de signal (2a, 2b) selon la revendication 7,
    caractérisé
    en ce que la longueur de la courbe-enveloppe varie.
  9. Câble de transmission de signal (2a, 2b) selon la revendication 7 ou la revendication 8,
    caractérisé
    en ce que la valeur d'un pas de toronnage maximal (smax) et/ou d'un pas de toronnage minimal (smin) varie pour des courbes-enveloppe successives.
  10. Câble de transmission de signal (2a, 2b) selon l'une des revendications 7 à 9,
    caractérisé
    en ce que la pente des courbes-enveloppe varie pour des courbes-enveloppe successives.
  11. Câble de transmission de signal (2a, 2b) selon l'une des revendications précédentes,
    caractérisé
    en ce que les fils torsadés s'étendent parallèlement les uns aux autres avec un même pas de toronnage (s).
  12. Câble de transmission de signal (2a, 2b) selon l'une des revendications précédentes,
    caractérisé
    en ce que le conducteur torsadé ne présente qu'une couche de fils torsadés.
  13. Câble de transmission de signal (2b) selon l'une des revendications précédentes, auquel est raccordé un dispositif d'alimentation (20) ainsi qu'un dispositif de traitement (22), ensemble dans lequel le dispositif d'alimentation (20) est réalisé de façon à envoyer dans l'un des conducteurs de transmission de signal (4b), un signal originel (D) à transmettre, et dans l'autre conducteur de transmission de signal (4b), un signal (D') inverse par rapport au signal originel (D), et le dispositif de traitement (22) est conçu pour le traitement d'une différence de niveau entre le signal originel (D) et le signal inverse (D').
  14. Câble de transmission de signal (2a, 2b) selon l'une des revendications précédentes,
    caractérisé
    en ce que le blindage (8) est réalisé sous forme de tresse comprenant des bandes de tresse (24) individuelles, tressées mutuellement les unes avec les autres, avec un pas de toronnage (s) variable.
  15. Utilisation d'un câble de transmission de signal (2a, 2b) selon l'une des revendications précédentes, pour la transmission de signal haute-fréquence dans le domaine au-dessus de 100 MHz, d'après laquelle pour réduire une atténuation par réflexion
    - on utilise en tant que conducteur de transmission de signal (4a, 4b), un conducteur torsadé (4a) constitué d'un certain nombre de fils torsadés (10) individuels, pour lequel le pas de toronnage (s) des fils torsadés (10) est variable, et/ou
    - on utilise, dans le cas d'un câble de transmission de signal symétrique (2b), des conducteurs de transmission de signal (4b), qui sont toronnés mutuellement avec un pas de toronnage (s) variable.
EP13713082.9A 2012-03-21 2013-03-14 Câble de transmission de signaux à haute fréquence Active EP2828862B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210204554 DE102012204554A1 (de) 2012-03-21 2012-03-21 Signalkabel und Verfahren zur hochfrequenten Signalübertragung
PCT/EP2013/000770 WO2013139452A1 (fr) 2012-03-21 2013-03-14 Câble de transmission de signaux à haute fréquence

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EP2828862A1 EP2828862A1 (fr) 2015-01-28
EP2828862B1 true EP2828862B1 (fr) 2016-05-11

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US (1) US20150008011A1 (fr)
EP (1) EP2828862B1 (fr)
JP (1) JP6456281B2 (fr)
KR (1) KR101906810B1 (fr)
DE (1) DE102012204554A1 (fr)
WO (1) WO2013139452A1 (fr)

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KR20140138753A (ko) 2014-12-04
DE102012204554A1 (de) 2013-09-26
US20150008011A1 (en) 2015-01-08
EP2828862A1 (fr) 2015-01-28
JP2015514286A (ja) 2015-05-18
KR101906810B1 (ko) 2018-10-11
JP6456281B2 (ja) 2019-01-23
WO2013139452A1 (fr) 2013-09-26

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