WO2022130801A1 - Câble parallèle multipolaire et son procédé de fabrication - Google Patents

Câble parallèle multipolaire et son procédé de fabrication Download PDF

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Publication number
WO2022130801A1
WO2022130801A1 PCT/JP2021/039938 JP2021039938W WO2022130801A1 WO 2022130801 A1 WO2022130801 A1 WO 2022130801A1 JP 2021039938 W JP2021039938 W JP 2021039938W WO 2022130801 A1 WO2022130801 A1 WO 2022130801A1
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WO
WIPO (PCT)
Prior art keywords
conductor
parallel cable
film
recess
coaxial
Prior art date
Application number
PCT/JP2021/039938
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English (en)
Japanese (ja)
Inventor
毅安 中山
博人 今村
哲 山崎
Original Assignee
東京特殊電線株式会社
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
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Application filed by 東京特殊電線株式会社 filed Critical 東京特殊電線株式会社
Priority to JP2022569755A priority Critical patent/JPWO2022130801A1/ja
Priority to DE112021006442.8T priority patent/DE112021006442T5/de
Publication of WO2022130801A1 publication Critical patent/WO2022130801A1/fr

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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
    • H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
    • H01B11/1808—Construction of the conductors
    • H01B11/1826—Co-axial cables with at least one longitudinal lapped tape-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
    • H01B11/20—Cables having a multiplicity of coaxial lines
    • H01B11/203—Cables having a multiplicity of coaxial lines forming a flat arrangement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/016—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing co-axial cables

Definitions

  • the present invention relates to a multi-core parallel cable having a small transmission loss and a method for manufacturing the same.
  • a coaxial cable having an external conductor As a coaxial cable with excellent shield characteristics, a coaxial cable having an external conductor is known. As shown in FIG. 7, excellent shielding characteristics are similarly required for a two-core parallel cable in which two coaxial wires 3 in which the outer periphery of the central conductor 1 is covered with an insulator 2 are arranged in parallel. For example, Patent Document 1 , 2 is proposed.
  • the 2-core parallel cable 10 shown in FIG. 7 of the present application exemplifies a hollow structure as the insulator 2.
  • Patent Document 1 two cores in which the outer periphery of the inner conductor is covered with an insulator are arranged in parallel, and a metal vapor deposition layer is formed on one or both sides of a plastic tape on the outer periphery of these two cores.
  • the composite tape of No. 1 is vertically attached so that the metal vapor deposition layer is on the outside, a horizontal winding shield is applied to the outer periphery of the first composite tape, and metal vapor deposition is performed on one or both sides of the plastic tape on the outer periphery of the horizontal winding shield.
  • a two-core parallel cable is proposed in which a second composite tape on which a layer is formed is wound so that the metal vapor deposition layer is on the inside, and the outer circumference of the second composite tape is covered with a jacket.
  • an insulating coating layer having a gap portion (fan surface shape) continuous in the longitudinal direction is provided on the outer periphery of the central conductor to form a signal line, which is arranged in parallel with two cores, and further, a central valley of both signal lines.
  • a high-speed differential transmission cable has been proposed in which a drain wire is arranged in a portion, an outer conductor is formed by winding a metal laminated tape while maintaining a 3-core flat structure, and a jacket is coated on the outer conductor.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide a multi-core parallel cable having a small transmission loss and a method for manufacturing the same.
  • the multi-core parallel cable according to the present invention is a multi-core parallel cable in which a plurality of coaxial wires are arranged side by side in one direction, and a film-shaped outer conductor is provided on the outer periphery of the plurality of coaxial wires.
  • the film-shaped outer conductor is characterized in that, at least a part thereof has a recess along the outer periphery of the coaxial line between the coaxial lines arranged side by side.
  • the film-shaped outer conductor since the film-shaped outer conductor has a recess at least a part thereof along the outer periphery of the coaxial line between the coaxial lines arranged side by side, the volume of the outer conductor located on the outer periphery of the coaxial line is increased.
  • the conductor resistance of the outer conductor becomes smaller and the resistance value of the outer conductor becomes smaller. As a result, the shielding characteristics of the individual coaxial lines can be enhanced and the transmission loss can be reduced.
  • the L / D is in the range of 0.01 to 0.45.
  • the transmission loss can be reduced by arranging the film-shaped outer conductor along the outer circumference of the coaxial line. It is preferably 0.05 to 0.40.
  • the film-shaped outer conductor is vertically wound around the plurality of coaxial wires, and the recess is formed in a portion where the film-shaped outer conductor overlaps. ..
  • the recess is formed in the overlapping portion of the film-shaped outer conductor, the conductor volume of the film-shaped outer conductor along the outer circumference of the coaxial line is increased, the shielding characteristic is further improved, and the transmission loss is reduced. can do.
  • the recesses are formed in two places in the direction orthogonal to the one direction between the adjacent coaxial lines. According to the present invention, since the recesses are formed in two places in the direction perpendicular to one direction (in each of the vertical directions), more film-like outer conductors can be placed along the outer periphery of the coaxial wire, and the shielding characteristics can be improved. It can be further increased and the transmission loss can be reduced.
  • the multi-core parallel cable according to the present invention further has a cover conductor that covers the film-shaped outer conductor.
  • a cover conductor that covers the film-shaped outer conductor since the cover conductor that covers the outer periphery of the film-shaped outer conductor is further provided, it is possible to suppress the vertically attached film-shaped outer conductor from loosening, and it is possible to stabilize the transmission characteristics.
  • the coaxial line is composed of a central conductor and an insulator provided on the outer periphery of the central conductor.
  • the insulator preferably has a hollow structure, and the outer diameter can be made smaller.
  • the method for manufacturing a multi-core parallel cable according to the present invention is a method for manufacturing a multi-core parallel cable in which a plurality of coaxial wires are arranged side by side in one direction, and the plurality of coaxial lines are arranged side by side in one direction.
  • the recesses In the method for manufacturing a multi-core parallel cable according to the present invention, it is preferable to form the recesses at two locations in the direction orthogonal to the one direction in the step of forming the recesses. According to the present invention, the transmission loss can be further reduced by forming the particles at two locations in a direction orthogonal to one direction (vertical direction).
  • the film-shaped outer conductor located between the coaxial lines is pushed in with a jig to form the recess.
  • a multi-core parallel cable having a small transmission loss and a method for manufacturing the same.
  • it can be preferably used as a differential cable used for automobiles and the like using 5G (5th generation mobile communication system).
  • the multi-core parallel cable 10 As shown in FIGS. 1 and 2, the multi-core parallel cable 10 according to the present invention has a plurality of coaxial wires 3 arranged side by side in one direction, and is in the form of a film on the outer periphery of the plurality of coaxial wires 3.
  • the outer conductor 4 is provided, and the film-shaped outer conductor 4 has a recess 7 between the coaxial lines 3 and 3 arranged side by side, at least a part of which is along the outer periphery of the coaxial line 3.
  • the film-shaped outer conductor 4 constituting the multi-core parallel cable 10 has a recess 7 along the outer periphery of the coaxial line 3 at least a part thereof between the coaxial lines 3 and 3 arranged side by side, the coaxial line 3 has a recess 7.
  • the volume of the outer conductor 4 located on the outer periphery increases, the conductor resistance of the outer conductor 4 decreases, and the resistance value of the outer conductor decreases.
  • the shielding characteristics of the individual coaxial wires 3 are enhanced, and the transmission loss can be reduced.
  • the coaxial line 3 is indispensable for constituting the multi-core parallel cable 10, and is composed of a central conductor 1 and an insulator 2 provided on the outer periphery of the central conductor 1.
  • two or more coaxial wires 3 are arranged side by side next to each other in one direction.
  • Parallel installation means that they are provided side by side, and normally, the adjacent coaxial lines 3 and 3 are in contact with each other, but they do not necessarily have to be in contact with each other.
  • the “plurality” means two or more, and the upper limit is not particularly limited, but the upper limit may be, for example, about six. When used as a differential cable, it is composed of an even number of coaxial wires 3.
  • the central conductor 1 is composed of one strand extending in the longitudinal direction of the coaxial wire 3, or is configured by twisting a plurality of strands.
  • the type of the strand is not particularly limited as long as it is made of a good conductive metal, but is a good conductive metal conductor such as a copper wire, a copper alloy wire, an aluminum wire, an aluminum alloy wire, or a copper-aluminum composite wire, or Those having a plating layer on their surfaces can be preferably mentioned. Copper wire and copper alloy wire are particularly preferable.
  • the plating layer a solder plating layer, a tin plating layer, a gold plating layer, a silver plating layer, a nickel plating layer and the like are preferable.
  • the cross-sectional shape of the wire is not particularly limited, but the cross-sectional shape is preferably circular, but it may be substantially circular or square.
  • the cross-sectional shape of the central conductor 1 is also not particularly limited. It may be circular (including an ellipse) or rectangular, but it is preferably circular.
  • the outer diameter of the central conductor 1 is preferably as large as possible so that the electrical resistance (AC resistance, conductor resistance) becomes small, but in order to reduce the outer diameter of the coaxial line 3, for example, 0.09 to The range of about 1 mm can be mentioned.
  • an insulating film (not shown) may be provided on the surface of the center conductor 1.
  • the type and thickness of the insulating film are not particularly limited, but for example, those that decompose well at the time of soldering are preferable, and thermosetting polyurethane films and the like can be preferably mentioned.
  • the insulator 2 is an insulating layer having a low dielectric constant provided continuously in the longitudinal direction on the outer periphery of the central conductor 1.
  • the material of the insulator 2 is not particularly limited and is arbitrarily selected according to the required impedance characteristics.
  • PFA ⁇ 2.1
  • ETFE ⁇ 2.5
  • F ⁇ P ⁇ 2.1
  • the material of the insulator 2 may contain a colorant.
  • the thickness of the insulator 2 is not particularly limited and is arbitrarily selected according to the required impedance characteristics, but is preferably in the range of, for example, about 0.15 to 1.5 mm.
  • the method for forming the insulator 2 is not particularly limited, but any of the solid structure, the hollow structure, and the foamed structure can be easily formed by extrusion.
  • the hollow structure using a low dielectric constant material can reduce the thickness of the insulator 2 without deteriorating the transmission characteristics, so that the outer diameter of the coaxial wire 3 can be reduced, and as a result, the multi-core parallel cable.
  • the volume of the 10 can be reduced, and the thickness of the multi-core parallel cable 10 can be reduced.
  • FIG. 5 is an example of an insulator 2 having a hollow structure.
  • This hollow structure has a gap portion 2A inside the structure, and the gap portion 2A can be, for example, a cross-sectional form in which the gap portion 2A is surrounded by the inner annular portion 2B, the outer annular portion 2C, and the connecting portion 2D.
  • the gap portion 2A is continuously provided in the insulator 2, but the form thereof may be round or rectangular and is not particularly limited. Since the insulator 2 having such a hollow structure is excellent in lateral pressure strength, it is not easily crushed in the process of forming the recess 7 described later, and the high frequency characteristics can be stabilized.
  • the insulator 2 having a hollow structure can be formed by extruding resin on the outer periphery of the central conductor 1 traveling on the extrusion die.
  • the thickness of each of the inner annular portion 2B, the outer annular portion 2C, and the connecting portion 2D is not particularly limited, but is, for example, in the range of about 0.01 to 0.05 mm, and is outside the formed hollow structure insulator 2.
  • the diameter can be, for example, in the range of about 0.4 to 1.0 mm.
  • the film-shaped outer conductor 4 (hereinafter referred to as “outer conductor 4”) is provided on the outer periphery of the plurality of coaxial wires 3 so as to cover the plurality of coaxial wires 3. ..
  • the outer conductor 4 has a recess 7 having a recess provided between the coaxial wires 3 and 3 arranged side by side so that at least a part thereof is provided along the outer periphery of the coaxial wire 3. Due to the presence of the recess 7, the outer conductor 4 runs along the outer periphery of the coaxial line 3 for a long time.
  • the volume of the outer conductor 4 located on the outer periphery of the coaxial line 3 increases as compared with the case without the recess 7, and the outer conductor The conductor resistance of 4 becomes smaller and the resistance value of the outer conductor becomes smaller. As a result, the shield characteristics of the individual coaxial wires 3 are enhanced, and the transmission loss can be reduced.
  • the outer conductor 4 is not particularly limited as long as it is in the form of a film that can be vertically attached so as to cover a plurality of coaxial wires 3, but a metal resin tape (in some cases, reference numeral 4 may be used in combination) can be preferably mentioned.
  • the metal resin tape 4 is a resin base material on which a metal layer is provided via an adhesive layer as needed.
  • the resin base material is not particularly limited, but a polyester film such as polyethylene terephthalate or polyethylene naphthalate can be preferably used.
  • the thickness of the resin base material is arbitrarily selected from those in the range of, for example, about 2 to 20 ⁇ m.
  • the adhesive layer arbitrarily provided is not particularly limited, but is preferably an adhesive layer capable of heat bonding.
  • urethane-based adhesives, epoxy-based adhesives, acrylic-based adhesives and the like can be mentioned.
  • the metal layer a copper layer, an aluminum layer and the like can be preferably mentioned.
  • the metal layer may be a metal layer formed on a resin base material by vapor deposition or plating, or a metal foil bonded via an adhesive layer (for example, a polyester-based thermoplastic adhesive resin) provided as needed.
  • an adhesive layer for example, a polyester-based thermoplastic adhesive resin
  • the thickness of the metal layer is not particularly limited and varies depending on the forming means, but the one formed by vapor deposition or plating can be arbitrarily selected from the range of about 2 to 8 ⁇ m, and the metal foil is laminated. Can be arbitrarily selected from the range of about 6 to 16 ⁇ m. Even in such a thin metal layer, the outer conductor 4 is stably held by the cover conductor 5 provided on the thin metal layer so as to cover the coaxial wire 3.
  • the outer conductor 4 is vertically wound around a plurality of coaxial wires 3. As shown in FIG. 3, “vertical attachment” is to wind the outer conductor 4 so as to wrap it along the longitudinal direction of the plurality of coaxial wires 3.
  • the resin base material side is the coaxial wire 3 side and the metal layer side is the cover conductor side.
  • the overlapping portion 8 is a space portion 9 in the vertical direction (between the coaxial lines and the outside before providing the recess). It is desirable that the space is arranged so as to cover the space portion 9 with a length that crosses the space (space surrounded by the conductor 4), and a recess 7 is formed thereafter.
  • the "vertical” and “vertical direction” are the upper and lower sides of the drawing when viewed in a plan view, or the directions thereof.
  • the recesses 7 are formed at one or two places in the direction orthogonal to the above-mentioned one direction, but it is preferably at two places. As shown in FIG. 2B, one place is a form in which recesses 7 are provided on one of the upper and lower sides, and two places are as shown in FIG. 2A. , It is a form in which recesses 7 are provided on both the upper and lower sides. In particular, since it is formed at two locations, the outer conductor 4 can be made longer and more along the outer circumference of the coaxial line 3, the shield characteristics can be further improved, and the transmission loss can be reduced.
  • the L / D is preferably in the range of 0.01 to 0.45. By keeping it within this range, the film-shaped outer conductor 4 can be made longer along the outer circumference of the coaxial line 3 to reduce the transmission loss.
  • the more preferable L / D is 0.05 to 0.40. In particular, when the L / D exceeds 0.45, the return loss due to reflection becomes large, so that the effect of improving the transmission loss is limited. When the L / D is 0.40 or less, the influence of the return loss due to the reflection is small, so that the transmission loss can be effectively suppressed. As shown in FIG.
  • the recess amount L is a straight line connecting the uppermost two points P1 and P2 of each of the outer conductors 4 in contact with the coaxial lines 3 and 3, and the bottom point P3 which is the lowermost point of the concave portion 7. The shortest distance.
  • FIG. 6 is a photograph of an example in which the outer conductor 4 is covered with the cover conductor 5 having a braided shield structure.
  • FIG. 6A shows a form in which the outer conductor 4 is exposed by partially cutting the cover conductor 5 made of the braided shield, and in the linear form extending laterally through the center of the outer conductor 4, the outer conductor 4 is exposed.
  • FIG. 6B which is a recessed recess 7, shows a form in which the outer conductor 4 is covered with a cover conductor 5 made of a braided shield.
  • the cover conductor 5 covers the vertically attached outer conductor 4 to prevent slackening and misalignment, it contributes to maintaining stable transmission characteristics.
  • the horizontally wound metal thin wire may be a single layer or laminated, and is not particularly limited, but a single layer is preferable.
  • the thin metal wire constituting the cover conductor 5 is not particularly limited as long as it is a fine metal wire having good conductivity.
  • various fine metal wires typified by tin-plated copper wire and the like can be preferably used.
  • the outer diameter of the thin metal wire may be, for example, one in the range of about 0.04 to 0.1 mm.
  • the number of thin metal wires is also arbitrarily selected depending on whether the structure is a braided structure or a horizontal winding shield structure, the size of the object to be covered, and the like.
  • the outer conductor 4 along the outer circumference of the coaxial wire 3 is less likely to shift due to the cover conductor 5, the distance between the outer conductor 4 and the center conductor 1 is less likely to change even if the outer conductor 4 is bent or unbent. As a result, phase fluctuation is less likely to occur, and deterioration of signal transmission characteristics (attenuation amount, skew) can be suppressed.
  • signal transmission characteristics attenuation amount, skew
  • the outer cover 6 is provided on the outer periphery of the cover conductor 5, and the material thereof is not particularly limited as long as it has an insulating property.
  • a resin tape provided with an adhesive layer on one side may be spirally wound, but preferably, the resin is extruded and provided.
  • various resins applied to a general coaxial cable can be used as the outer body, and for example, a fluorine-based resin such as PFA, ETFE, FEP or the like can be used. It may be a resin, a vinyl chloride resin, a polyolefin resin such as polyethylene, or a polyester resin such as polyethylene terephthalate.
  • the thickness of the outer cover 6 can be, for example, in the range of about 0.1 to 1 mm.
  • the cover conductor 5 When a resin tape is used, it is possible to prevent the cover conductor 5 (particularly in the case of a horizontal winding shield structure) from being displaced by fusing it with the cover conductor 5.
  • the resin tape When a resin tape with a fusion layer is used, the resin tape is wound horizontally with the fusion layer side facing the cover conductor 5.
  • the material of the resin tape include polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyamide (PA), polyimide (PI), polyphenylene sulfide (PPS), and ethylene-ethylene tetrafluoride copolymer (ETFE).
  • the thickness of the resin tape is not particularly limited as long as it is thick enough to secure the required dielectric strength, but can be about 0.004 to 0.01 mm.
  • the fused layer is provided on one side of the resin tape, and examples of the material thereof include thermosetting resins such as polyurethane resin, polyester resin, and polyesterimide resin. The thickness of the fused layer is also not particularly limited, but can be about 0.001 mm.
  • the method for manufacturing a multi-core parallel cable 10 is a method for manufacturing a multi-core parallel cable in which a plurality of coaxial wires 3 are arranged side by side in one direction, and the plurality of coaxial lines 3 are arranged side by side in one direction.
  • the recess 7 it is preferable to form the recess 7 at two locations in the direction orthogonal to the one direction.
  • the two locations are two locations in the vertical direction as shown in FIG. 2A, and the transmission loss can be further reduced.
  • the film-shaped outer conductor 4 is covered after arranging the two coaxial lines 3, as shown in FIG. 3, there is a space 9 between the coaxial lines and the outer conductor 4.
  • the film-shaped outer conductor 4 is pushed by the recess-forming members 20 and 20 shown in FIG. Can be formed.
  • the recess forming member 20 is not particularly limited, but it is convenient to use the pulley as shown in FIG. 4 as the recess forming member 20, and by passing the multi-core parallel cable 10 between the two pulleys, the recess 7 is formed. Can be easily provided at two locations in the vertical direction.
  • the multi-core parallel cable 10 thus obtained has a small transmission loss, it can be preferably used as a differential cable used for automobiles and the like using 5G (5th generation mobile communication system).
  • Example 1 As the coaxial wire 3, a silver-plated annealed copper wire (AWG24) having an outer diameter of 0.501 mm was used as the central conductor 1.
  • AMG24 silver-plated annealed copper wire
  • a PFA resin manufactured by DuPont
  • the gap portion 2A is connected to the inner annular portion 2B and the outer annular portion 2C.
  • a hollow structure having a cross-sectional shape surrounded by the portion 2D was formed.
  • the thickness of the inner annular portion 2B is 0.128 mm
  • the thickness of the outer annular portion 2C is 0.154 mm
  • the thickness of the connecting portion 2D is 0.161 mm
  • the outer diameter D of) was 1.36 mm
  • the void ratio of the void portion 2A was 30% with respect to the area of the entire insulator (entire hollow structure).
  • the dielectric constant ⁇ was about 1.6. In this way, the coaxial line 3 was manufactured.
  • the two coaxial wires 3 produced were arranged so as to be in close contact with each other, and the film-shaped outer conductor 4 was provided so as to vertically attach and wrap the two coaxial wires 3.
  • the outer conductor 4 used a copper foil having a thickness of 0.008 mm was provided on one surface of a PET resin base material having a thickness of 0.004 mm via an adhesive layer, and the width was 2.5 mm and the total thickness was 0.
  • a 0.02 mm metal resin tape 4 was used.
  • the metal resin tape 4 was vertically attached so that the copper foil side was on the coaxial line side and the overlapping portion 8 was formed by a width of 1.4 mm as shown in FIG.
  • the overlapping portion 8 has a length that crosses the space portion 9 in the vertical direction when FIG.
  • FIG. 3 is viewed in a plan view, is arranged so as to cover the space portion 9, and then the recess forming member 20 (pulley) shown in FIG. was used on only one side, and a recess 7 having a recess amount L of 0.0136 mm was formed on only one side (see FIG. 2B).
  • the dent amount L / coaxial line outer diameter D was 0.01.
  • a braided shield was provided as a cover conductor 5 so as to cover the whole.
  • 80 silver-plated annealed copper wires having an outer diameter of 0.10 mm were used.
  • a PFA resin (manufactured by DuPont) layer was extruded to form a 2-core parallel cable 10 having an outer diameter of 2.7 mm and a width of 4.0 mm.
  • Example 2 to 10 A 2-core parallel cable with various dents was produced. Other than that, it was the same as in Example 1.
  • Example 11 In Example 1, the recess forming member 20 (pulley) shown in FIG. 4 was used on both sides to form recesses 7 having a recess amount L of 0.0136 mm on both the upper and lower sides (see FIG. 2A). Other than that, it was the same as in Example 1.
  • the dent amount L / coaxial line outer diameter D was 0.01.
  • Example 12 to 20 A 2-core parallel cable with various dents was produced. Other than that, it was the same as in Example 11.
  • Comparative Example 1 and Comparative Example 2 are examples in which the recess 7 is not provided, and other than that, the same as in Examples 1 and 11, respectively.
  • Tables 1 and 2 The measurement results of the transmission loss are shown in Tables 1 and 2.
  • Tables 1 and 2 For the transmission loss, the attenuation of 1 m of the cable was measured using a network analyzer. Tables 1 and 2 also show the coaxial line outer diameter D, the dent amount L, the unit length volume calculated from the dent amount, and the dent amount L / coaxial line outer diameter D.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Conductors (AREA)
  • Communication Cables (AREA)

Abstract

L'invention a pour but de fournir un câble parallèle multipolaire présentant un faible affaiblissement de ligne, et son procédé de fabrication. La solution selon l'invention porte sur un câble parallèle multipolaire 10 comprenant une pluralité de câbles coaxiaux 3 disposés en parallèle dans une direction, et un conducteur extérieur de type couche 4 disposé sur une périphérie extérieure de la pluralité de câbles coaxiaux 3. Le conducteur extérieur de type couche 4 comprend une partie évidée 7 entre les câbles coaxiaux 3, disposés en parallèle, au moins une partie de la partie évidée 7 étant disposée le long de la périphérie extérieure des câbles coaxiaux 3. De préférence, la valeur L/D est comprise dans une plage de 0,01 à 0,45, L étant la quantité de dépression de la partie évidée 7 et D étant le diamètre extérieur des câbles coaxiaux 3. En outre, le conducteur extérieur de type couche 4 est longitudinalement enroulé le long de la pluralité de câbles coaxiaux 3, et la partie évidée 7 est de préférence formée dans une partie de chevauchement 8 du conducteur extérieur de type couche 4.
PCT/JP2021/039938 2020-12-14 2021-10-29 Câble parallèle multipolaire et son procédé de fabrication WO2022130801A1 (fr)

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JP2022569755A JPWO2022130801A1 (fr) 2020-12-14 2021-10-29
DE112021006442.8T DE112021006442T5 (de) 2020-12-14 2021-10-29 Mehradriges paralleles Kabel und Verfahren zu dessen Herstellung

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JP2020206400 2020-12-14
JP2020-206400 2020-12-14

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493179U (fr) * 1977-12-15 1979-07-02
JPS55131017U (fr) * 1979-03-10 1980-09-17
JP2003031045A (ja) * 2001-07-18 2003-01-31 Hitachi Cable Ltd 蒸着テープ縦添え２心平行極細同軸ケーブル

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003031046A (ja) 2001-07-18 2003-01-31 Hitachi Cable Ltd 蒸着テープ縦添え２心平行極細同軸ケーブル
JP4685744B2 (ja) 2006-10-19 2011-05-18 東京特殊電線株式会社 高速差動伝送ケーブル

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493179U (fr) * 1977-12-15 1979-07-02
JPS55131017U (fr) * 1979-03-10 1980-09-17
JP2003031045A (ja) * 2001-07-18 2003-01-31 Hitachi Cable Ltd 蒸着テープ縦添え２心平行極細同軸ケーブル

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