WO2019054488A1 - 漏洩同軸ケーブル - Google Patents

漏洩同軸ケーブル Download PDF

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Publication number
WO2019054488A1
WO2019054488A1 PCT/JP2018/034207 JP2018034207W WO2019054488A1 WO 2019054488 A1 WO2019054488 A1 WO 2019054488A1 JP 2018034207 W JP2018034207 W JP 2018034207W WO 2019054488 A1 WO2019054488 A1 WO 2019054488A1
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Prior art keywords
coaxial cable
wire
conductor
leaky coaxial
outer conductor
Prior art date
Application number
PCT/JP2018/034207
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English (en)
French (fr)
Japanese (ja)
Inventor
田中　一平
照之 辻田
Original Assignee
株式会社フジクラ
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Application filed by 株式会社フジクラ filed Critical 株式会社フジクラ
Priority to CN201880051009.1A priority Critical patent/CN110998975B/zh
Priority to JP2019540128A priority patent/JP6654739B2/ja
Publication of WO2019054488A1 publication Critical patent/WO2019054488A1/ja

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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
    • 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
    • H01Q13/22—Longitudinal slot in boundary wall of waveguide or transmission line

Definitions

  • the present invention relates to a leaky coaxial cable.
  • Priority is claimed on Japanese Patent Application No. 2017-176842, filed September 14, 2017, the content of which is incorporated herein by reference.
  • the leaky coaxial cable includes, for example, an inner conductor, an insulator covering the inner conductor, an outer conductor provided on the outer surface side of the insulator, and a sheath provided on the outer peripheral surface of the outer conductor.
  • the slot has a structure formed as a radiating portion.
  • the electromagnetic wave signal supplied to the inner conductor is shielded by the outer conductor but leaks to the outside through the slot which is the radiating portion. That is, the leaky coaxial cable is a cable type antenna and can be said to be a special elongated transmit / receive antenna.
  • As an outer conductor a metal tape etc. are used, for example (refer to patent documents 1).
  • the outer conductor is formed by longitudinally attaching a metal tape around the insulator.
  • the present invention has been made in view of the above-mentioned circumstances, and provides a leaky coaxial cable capable of preventing variations in characteristics.
  • a first aspect of the present invention is a leaky coaxial cable, wherein an inner conductor extending in one direction, an insulator covering the inner conductor, and a metal tape in which a slot is formed in the insulator are vertically attached. And an outer conductor provided on the outer surface of the outer conductor, and a nonmetal wire including a synthetic resin, and a sheath covering the outer conductor and the nonmetal wire.
  • the outer conductor of the outer conductor preferably further comprises a conductor wire.
  • the slot has a rectangular shape, and a first side along a width direction of the leaky coaxial cable.
  • the second side along the length direction of the leaky coaxial cable is longer than the length of the first side of the slot is the outer diameter of the outer conductor in plan view of the leaky coaxial cable.
  • it is 60 to 90%.
  • at least a part of the conductor wire preferably forms a composite wire with the nonmetal wire.
  • the use of the nonmetallic wire can suppress the formation of a gap between the insulator and the metal tape. Therefore, the variation in the structure in the length direction is reduced, and the electrical characteristics such as impedance are stabilized. Also, since non-metallic wires are used, radiation of electromagnetic waves in the radiation part is not inhibited.
  • (A) is a cross-sectional view of the leaky coaxial cable of the first embodiment, and (B) is a plan view of the leaky coaxial cable of (A).
  • (A) is a cross-sectional view of a leaky coaxial cable of a comparative embodiment, and (B) is a plan view of the leaky coaxial cable of (A). It is a figure which shows an example of the relationship of the frequency and VSWR in the leaky coaxial cable of 1st Embodiment and a comparative form.
  • (A) is a cross-sectional view of the leaky coaxial cable of the second embodiment, and (B) is a plan view of the leaky coaxial cable of (A).
  • FIG. 1A is a cross-sectional view of a leaky coaxial cable 10 according to a first embodiment.
  • FIG. 1A shows a cross section perpendicular to the direction (axial direction) of the central axis C of the inner conductor 1.
  • FIG. 1B is a plan view of the leaky coaxial cable 10.
  • the leaky coaxial cable 10 has an inner conductor 1, an insulator 2, an outer conductor 3, and a non-metallic wire from the inner peripheral side toward the outer peripheral side. 4, a conductor wire 5, and a sheath 6.
  • the internal conductor 1 is, for example, a conductor such as a metal such as copper, and is a linear body extending in one direction.
  • the inner conductor 1 may be a stranded wire obtained by twisting a plurality of conductors.
  • the insulator 2 is provided to cover the outer peripheral surface of the inner conductor 1.
  • an insulating resin such as foamed polyethylene is used.
  • the outer conductor 3 is a tape (for example, a metal tape) which is a conductor such as a metal (such as copper).
  • the outer conductor 3 may be, for example, a metal foil such as copper foil.
  • the thickness of the outer conductor 3 is, for example, 0.01 to 0.2 ⁇ m.
  • 3a is an outer peripheral surface (outer surface) of the outer conductor 3.
  • the outer conductor 3 may have a configuration in which a tape-shaped insulating base (not shown) and an adhesive layer (not shown) are stacked.
  • polyester resins such as polyethylene terephthalate (PET); polyolefin resins such as polypropylene and polyethylene can be used.
  • the insulating base is formed on the inner circumferential surface side of the outer conductor 3.
  • the adhesive layer is an ethylene ionomer resin (for example, Surlyn (registered trademark)).
  • the adhesion layer is formed on the inner peripheral surface side of the insulating base material. The adhesion layer bonds the outer conductor 3 and the insulating base to the insulator 2.
  • the slot may not be formed in the insulating base and the adhesion layer.
  • the outer conductor 3 is formed with a plurality of slots 7 (radiating parts) which are openings.
  • the slots 7 are formed at intervals in the longitudinal direction.
  • the slots 7 are preferably arranged in the longitudinal direction at a constant pitch.
  • the pitch of the slots 7 is determined in accordance with the frequency of the supplied high frequency signal.
  • the slot 7 can be formed, for example, by drilling a metal tape to be the outer conductor 3.
  • the slots 7 can also be formed by pattern etching using a photolithographic technique.
  • the outer conductor 3 is wound around the insulator 2 with the length direction of the metal tape aligned with the length direction of the insulator 2 (that is, vertically attached).
  • the outer conductor 3 is formed with a rectangular slot 7 whose longitudinal direction (long side direction) is along the longitudinal direction of the leaky coaxial cable 10.
  • the slot 7 has an opening in which the side L (long side L) in the longitudinal direction of the leaky coaxial cable 10 is longer than the side W (short side W) in the lateral direction of the leaky coaxial cable 10 .
  • the length of the short side W of the slot 7 is about 60 to 90% of the outer diameter of the outer conductor 3.
  • the length of the long side L of the slot 7 is about 2 to 10 times the short side W.
  • slots for example, in the case of a leaky coaxial cable for 2.4 GHz (diameter of outer conductor is 1.5 mm), the following slots can be used.
  • Slot shape rectangular.
  • Slot width 2 to 4 mm (varies according to the diameter of the cable and the width of the external conductor tape).
  • Slot length 40 to 50 mm (45 to 55% of the slot pitch).
  • Slot pitch 91 mm (varies according to the frequency used. For the method of determining the pitch, see, for example, Japanese Patent Application Laid-Open No. 2013-229772). As shown in FIG.
  • the non-metal wire 4 described later is provided on the outer peripheral surface 3 a of the outer conductor 3 to suppress the floating of the outer conductor 3.
  • the internal conductor 1 propagates a high frequency signal supplied from an external signal source or the like. Since the high frequency signal is shielded by the outer conductor 3 in the place where the slot 7 is not present, the electromagnetic wave is not radiated to the outside of the leaky coaxial cable 10. Where the slot 7 is located, the electromagnetic wave is radiated to the outside of the leaky coaxial cable 10 through the slot 7.
  • the nonmetallic wire 4 is a wire which is a nonmetallic material.
  • non-metallic materials include synthetic resins such as nylon yarn (polyamide resin) and tetron yarn (polyester resin): natural materials such as cotton, silk, hemp, wool and the like: glass fibers and the like.
  • the nonmetallic materials exemplified herein are nonconductive materials.
  • the nonmetal wire 4 is a nonconductive wire which is a nonconductive material. As the nonmetal wire 4, for example, a fiber of 10 to 1000 denier can be used.
  • the nonmetal wire 4 may be composed of a single wire, or may be a stranded wire or a non-twisted wire obtained by bundling a plurality of single wires.
  • the nonmetal wire 4 When using a nylon yarn as the nonmetal wire 4, for example, it is preferable to have the following characteristics. Size (weight): 420 ⁇ 20 d (denier). Tensile strength: 2.2 kgf or more. Elongation: 15% or more. As described later, the process of providing the nylon yarn braid around the outer conductor (for example, metal tape) is performed while applying a tension of 300 to 400 kgf to the nylon yarn. Therefore, the nylon yarn has sufficient resistance (tensile strength) to this tension. Further, the non-metal wire 4 also needs a sufficient elongation.
  • the elongation of the nylon yarn is preferably 15% or more.
  • the nonmetal wire 4 is braided or wound around the outer peripheral surface 3 a of the outer conductor 3, thereby pressing the outer conductor 3 against the insulator 2. Therefore, the floating of the outer conductor 3 (the gap between the insulator 2 and the outer conductor 3) can be suppressed, and the adhesion of the outer conductor 3 to the insulator 2 can be enhanced. A portion of the nonmetal wire 4 is in a position overlapping the slot 7.
  • the conductor line 5 is a line which is a conductor such as metal.
  • the metal which comprises the conductor wire 5 is copper, a copper alloy, steel etc., for example.
  • the conductor wire 5 is, for example, a tin-plated soft copper wire.
  • the outer diameter of the conductor wire 5 is, for example, 0.05 to 0.5 mm.
  • the conductor lines 5 may be made of a carbon-based material.
  • the conductor wire 5 may be composed of a single wire, or may be a stranded wire or a non-twisted wire obtained by bundling a plurality of single wires.
  • the conductor wire 5 is braided or wound around the outer peripheral surface 3 a of the outer conductor 3, thereby pressing the outer conductor 3 against the insulator 2. Therefore, the floating of the outer conductor 3 can be suppressed, and the adhesion of the outer conductor 3 to the insulator 2 can be enhanced.
  • the sheath 6 is made of a resin such as polyvinyl chloride or flame retardant polyethylene, and is provided to cover the outer conductor 3, the nonmetal wire 4 and the conductor wire 5.
  • the sheath 6 can be formed by extrusion.
  • the leaky coaxial cable 10 can be manufactured as follows. Prepare an insulator 2 containing the internal conductor 1. A tape-shaped outer conductor 3 is vertically attached to the insulator 2 to enclose the insulator 2. Next, the non-metal wire 4 and the conductor wire 5 are provided on the outer peripheral surface 3 a of the outer conductor 3 by braiding or transverse winding using a braiding machine or the like. Here, a tension of 300 to 400 kgf is applied to the nonmetal wire 4 and the conductor wire 5. Therefore, the non-metal wire 4 needs to have sufficient tensile strength (for example, a tensile strength of 2.2 kgf or more) to withstand this. Next, the sheath 6 is formed on the outer peripheral side of the outer conductor 3 by extrusion molding or the like. Thereby, the leaky coaxial cable 10 shown in FIG. 1 and the like is obtained.
  • the use of the nonmetal wire 4 can suppress the floating of the outer conductor 3 and enhance the adhesion of the outer conductor 3 to the insulator 2. Therefore, the variation in the structure in the length direction is reduced, and the electrical characteristics such as impedance are stabilized as described later. Further, in the leaky coaxial cable 10, since the nonmetal wire 4 is used, the radiation of the electromagnetic wave in the slot 7 is not inhibited.
  • FIGS. 2A and 2B show examples of leaky coaxial cables as comparative examples.
  • FIG. 2A is a cross-sectional view of a leaky coaxial cable 110 of a comparative form.
  • FIG. 2B is a plan view of the leaky coaxial cable 110.
  • symbol is attached
  • the leaky coaxial cable 110 has an inner conductor 1, an insulator 2, an outer conductor 3, a conductor wire 5, and a sheath 6. Unlike the leaky coaxial cable 10 of the first embodiment, the non-metal wire is not used in the leaky coaxial cable 110.
  • the conductor wire 5 is braided or wound around the outer peripheral surface 3 a of the outer conductor 3, thereby pressing the outer conductor 3 against the insulator 2.
  • FIG. 3 is a view showing an example of the relationship between the frequency and the VSWR in the leaky coaxial cable 10 of the first embodiment and the leaky coaxial cable 110 of the comparative embodiment.
  • the leaky coaxial cable 10 of the first embodiment includes the inner conductor 1 (outer diameter 0.6 mm) and the insulator 2 made of foamed polyethylene. (Outer diameter 1.6 mm), outer conductor 3 (thickness 0.01 mm), non-metallic wire 4 (420 ⁇ 20 denier) which is nylon, conductor wire 5 (outer diameter 0. 0) which is tin-plated soft copper wire. 12 mm) and a sheath 6.
  • the nonmetal wire 4 is provided on the outer peripheral surface 3a of the outer conductor 3 by a braid (number of bats 12, braid pitch 17 mm).
  • the conductor wire 5 is provided on the outer peripheral surface 3 a of the outer conductor 3 by a braid (four strokes, a braid pitch 17 mm).
  • a leaky coaxial cable 110 (see FIGS. 2 (A) and 2 (B)) of the comparative embodiment includes an inner conductor 1 (outside diameter 0.6 mm) and an insulator 2 (outside diameter 1.6 mm) made of foamed polyethylene. And an outer conductor 3 (thickness 0.01 mm), a conductor wire 5 (outer diameter 0.12 mm) which is a tin-plated soft copper wire, and a sheath 6.
  • the conductor wire 5 is provided on the outer peripheral surface 3 a of the outer conductor 3 by a braid (four strokes, a braid pitch 17 mm).
  • VSWR is expressed by the following equation using the reflection coefficient ⁇ .
  • ⁇ is 0 and VSWR is 1.
  • ⁇ is greater than zero and VSWR is greater than one. Therefore, the greater the VSWR, the greater the variation in the structure in the cable length direction.
  • the VSWR of the leaky coaxial cable 10 of the first embodiment is smaller than the VSWR of the leaky coaxial cable 110 of the comparative embodiment. From this, it is understood that the use of the nonmetal wire 4 reduces the variation in the structure in the longitudinal direction of the leaky coaxial cable 10 and stabilizes the electrical characteristics such as the impedance.
  • FIG. 4A is a cross-sectional view of the leaky coaxial cable 20 of the second embodiment.
  • FIG. 4B is a plan view of the leaky coaxial cable 20.
  • the leaky coaxial cable 20 has the inner conductor 1, the insulator 2, the outer conductor 3, and a non-metallic wire from the inner circumferential side toward the outer circumferential side. And a sheath 6.
  • the leaky coaxial cable 20 differs from the leaky coaxial cable 10 of the first embodiment (see FIGS. 1A and 1B) in that no conductor wire is used.
  • the nonmetal wire 24 is, like the nonmetal wire 4 in the first embodiment, a nonconductive wire which is a nonmetal material such as a synthetic resin, a natural material, or glass.
  • the non-metallic wire 24 is braided or wound around the outer peripheral surface 3 a of the outer conductor 3, thereby pressing the outer conductor 3 against the insulator 2.
  • the use of the nonmetal wire 24 can suppress the floating of the outer conductor 3 and enhance the adhesion of the outer conductor 3 to the insulator 2. Therefore, the variation in the structure in the length direction is reduced, and the electrical characteristics such as impedance are stabilized as described later. Moreover, in the leaky coaxial cable 20, since the nonmetal wire 24 is used, the radiation of the electromagnetic wave in the slot 7 is not inhibited.
  • FIG. 5 is a view showing an example of the relationship between the frequency and the VSWR in the leaky coaxial cable 20 of the second embodiment and the leaky coaxial cable 110 of the comparative embodiment (see FIG. 2A and FIG. 2B).
  • the leaky coaxial cable 20 according to the second embodiment includes the inner conductor 1 (outer diameter 0.6 mm) and the insulator 2 made of foamed polyethylene.
  • the sheath 6 is provided with an outer diameter of 1.6 mm, an outer conductor 3 having a thickness of 0.06 mm, a nonmetal wire 24 of nylon (420 ⁇ 20 denier) and a sheath 6.
  • the nonmetal wire 24 is provided on the outer peripheral surface 3a of the outer conductor 3 by a braid (number of bats 16, braid pitch 17 mm).
  • the VSWR of the leaky coaxial cable 20 of the second embodiment is smaller than the VSWR of the leaky coaxial cable 110 of the comparative embodiment (see FIGS. 2A and 2B). From this, it is understood that the use of the nonmetal wire 24 reduces the variation in the structure in the longitudinal direction of the leaky coaxial cable 20 and stabilizes the electrical characteristics such as the impedance.
  • a method of adjusting the amount of leaked radio wave in the leaky coaxial cables 10 and 20 will be described.
  • two methods are considered: (i) adjustment of the shape of the slot 7; and (ii) adjustment of the density of the conductor wires 5 (the number per cable length).
  • a tool for forming the slot 7 in the metal tape to be the outer conductor 3 (for example, a tool for drilling a hole in the case of drilling, a mask pattern used for exposure in the case of a photoresist method) Need to be made.
  • the method (ii) is useful as a method of adjusting the amount of radio wave radiation.
  • FIG. 6 is a diagram showing the relationship between the density of conductor lines at 2.4 GHz and the coupling loss.
  • the conductor wire density of 0% refers to the case where all the braids with a stroke number of 16 are made of nonmetal wires, as in the leaky coaxial cable 20 shown in FIGS. 4 (A) and 4 (B). . That is, it becomes a structure which covers all the area
  • the density 40% of the conductor wire means that 40% of the number of strokes 16 is composed of a conductor wire (tin-plated soft copper wire) and the remaining 60% is composed of a nonmetal wire (FIG. 1 (A) and FIG.
  • the coupling loss increases as the ratio of conductor lines increases. Therefore, it becomes possible to adjust the amount of leaked radio waves by adjusting the ratio of the conductor lines.
  • the nonmetal wire is a nylon yarn
  • the density of the conductor wire braid is 0 to 50%, so the braiding density of the nylon yarn is in the range of 50 to 100%.
  • FIG. 7 is a cross-sectional view showing a leaky coaxial cable 20A which is a first modification of the leaky coaxial cable 20 of the second embodiment.
  • FIG. 8 is a cross-sectional view showing a leaky coaxial cable 20B which is a second modification of the leaky coaxial cable 20 of the second embodiment.
  • symbol is attached and the description is abbreviate
  • the nonmetal wire 24A is a stranded wire obtained by twisting a plurality of nylon yarns and the like.
  • the non-metal wire 24A is a twisted wire and therefore has high strength. Therefore, even if tension is applied to the nonmetal wire 24A due to bending deformation of the leaky coaxial cable, disconnection of the nonmetal wire 24A can be suppressed.
  • the internal conductor 1A is a stranded wire having a plurality of metal wires 1Aa.
  • the inner conductor 1A is, for example, a stranded wire having seven metal wires 1Aa (soft copper wire (0.7 mm outer diameter)).
  • the nonmetal wire 24B is a non-twisted wire having a plurality of non-twisted nylon yarns and the like.
  • the untwisted wire when the untwisted wire is pressed against the outer conductor of the leaky coaxial cable 20B, the untwisted wire spreads in the circumferential direction of the leaky coaxial cable, and the outer conductor can be pressed by a surface. Therefore, the floating of the outer conductor 3 can be suppressed, and the adhesion of the outer conductor 3 to the insulator 2 can be enhanced.
  • FIG. 9 is a perspective view showing a structure of a leaky coaxial cable 10A which is a first modification of the leaky coaxial cable 10 of the first embodiment.
  • the leaky coaxial cable 10 ⁇ / b> A includes an inner conductor 1 ⁇ / b> A, an insulator 2, an outer conductor 3, a nonmetal wire 4, a conductor wire 5, and a sheath from the inner periphery to the outer periphery.
  • the outer conductor 3 is a copper foil with a thickness of 0.01 mm.
  • An insulating base 31 (thickness 0.01 mm) and an adhesive layer 32 (thickness 0.04 mm) are stacked on the outer conductor 3.
  • the insulating base 31 is, for example, PET.
  • the adhesion layer 32 is, for example, ethylene ionomer resin (Surrin (registered trademark)). The adhesion layer 32 is melted by the heat applied during the formation of the sheath 6 to bond the outer conductor 3 and the insulating base 31 to the insulator 2.
  • the nonmetal wire 4 and the conductor wire 5 are provided on the outer peripheral surface 3a of the outer conductor 3 by braiding.
  • FIG. 10 is a perspective view showing a structure of a leaked coaxial cable 20C which is a third modified example of the leaked coaxial cable 20 of the second embodiment.
  • the leaky coaxial cable 20C has an inner conductor 1A, an insulator 2, an outer conductor 3, a nonmetal wire 24, and a sheath 6 from the inner peripheral side toward the outer peripheral side.
  • the nonmetal wire 24 is provided on the outer peripheral surface 3a of the outer conductor 3 by braiding.
  • FIG. 11 is a perspective view showing a structure of a leaky coaxial cable 10B which is a second modification of the leaky coaxial cable 10 of the first embodiment.
  • the leaky coaxial cable 10B is an inner conductor 1A, an insulator 2, an outer conductor 3, a nonmetal wire 4, a conductor wire 5, and a sheath from the inner peripheral side toward the outer peripheral side.
  • the nonmetal wire 4 and the conductor wire 5 are provided on the outer peripheral surface 3a of the outer conductor 3 by lateral winding.
  • FIG. 12 is a perspective view showing a structure of a leaked coaxial cable 10C which is a third modified example of the leaked coaxial cable 10 of the first embodiment.
  • the leaky coaxial cable 10 ⁇ / b> C has an inner conductor 1 ⁇ / b> A, an insulator 2, an outer conductor 3, a nonmetal wire 4, a conductor wire 5, and a sheath from the inner periphery to the outer periphery.
  • the nonmetal wire 4 is provided on the outer peripheral surface 3a of the outer conductor 3 by transverse winding.
  • the conductor wire 5 is provided on the outer peripheral surface 3 a of the outer conductor 3 by braiding.
  • FIG. 13 is a perspective view showing a structure of a leaked coaxial cable 10D which is a fourth modified example of the leaked coaxial cable 10 of the first embodiment.
  • the leaky coaxial cable 10D has an inner conductor 1A, an insulator 2, an outer conductor 3, a nonmetal wire 4, a conductor wire 5, and a sheath from the inner peripheral side to the outer peripheral side.
  • the nonmetal wire 4 is provided on the outer peripheral surface 3a of the outer conductor 3 by braiding.
  • the conductor wire 5 is provided on the outer peripheral surface 3 a of the outer conductor 3 by transverse winding.
  • FIG. 14 is a perspective view showing a structure of a leaky coaxial cable 10E which is a fifth modification of the leaky coaxial cable 10 of the first embodiment.
  • the leaky coaxial cable 10E has an inner conductor 1A, an insulator 2, an outer conductor 3, a nonmetal wire 4, a composite wire 35, a sheath, from the inner periphery toward the outer periphery.
  • the composite wire 35 is a twisted wire or a non-twist wire obtained by twisting a non-metal wire (nylon yarn) and a conductor wire (tin-plated soft copper wire).
  • the composite wire 35 is provided on the outer peripheral surface 3 a of the outer conductor 3 by braiding.
  • the composite wire 35 may be provided by transverse winding.
  • the leaky coaxial cable may be configured such that at least one of the nonmetal wire and the conductor wire is braided or wound around.
  • SYMBOLS 1 internal conductor, 2 ... insulator, 3 ... outer conductor, 3a ... outer peripheral surface (outer surface), 4, 24 ... nonmetal wire, 5 ... conductor wire, 6 ... ⁇ ⁇ ⁇ Sheath, 7 ⁇ ⁇ ⁇ Slot, 10, 10A, 10B, 10C, 10D, 10E, 20, 20A, 20B, 20C ⁇ ⁇ ⁇ Leaky coaxial cable, 35 ⁇ ⁇ ⁇ composite wire.

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PCT/JP2018/034207 2017-09-14 2018-09-14 漏洩同軸ケーブル WO2019054488A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880051009.1A CN110998975B (zh) 2017-09-14 2018-09-14 漏泄同轴电缆
JP2019540128A JP6654739B2 (ja) 2017-09-14 2018-09-14 漏洩同軸ケーブル

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Application Number Priority Date Filing Date Title
JP2017176842 2017-09-14
JP2017-176842 2017-09-14

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WO2019054488A1 true WO2019054488A1 (ja) 2019-03-21

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JPS647411U (zh) * 1987-07-01 1989-01-17
US20030122636A1 (en) * 2001-12-28 2003-07-03 Dibenedetto Arturo Radio frequency coaxial cable and method for making same
JP2013535182A (ja) * 2010-06-23 2013-09-09 スリーエム イノベイティブ プロパティズ カンパニー 屋内無線アプリケーションのための接着剤付きケーブル配線システム
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US5796042A (en) * 1996-06-21 1998-08-18 Belden Wire & Cable Company Coaxial cable having a composite metallic braid
US6281856B1 (en) * 1999-12-03 2001-08-28 Hon Hai Precision Ind. Co., Ltd. Method for making antenna of coaxial cable and the antenna so made
WO2005069314A1 (de) * 2004-01-19 2005-07-28 Huber + Suhner Ag Koaxialkabel
EP1816704B1 (en) * 2006-02-02 2008-07-09 W.L.Gore & Associates Gmbh Leaky coaxial antenna
JP2012128236A (ja) * 2010-12-16 2012-07-05 Sumitomo Electric Ind Ltd 光ケーブル
JP2012169771A (ja) * 2011-02-10 2012-09-06 Fujikura Ltd 漏洩同軸ケーブル
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Publication number Priority date Publication date Assignee Title
JPS5193646U (zh) * 1975-01-25 1976-07-27
JPS5457936U (zh) * 1977-09-28 1979-04-21
JPS647411U (zh) * 1987-07-01 1989-01-17
US20030122636A1 (en) * 2001-12-28 2003-07-03 Dibenedetto Arturo Radio frequency coaxial cable and method for making same
JP2013535182A (ja) * 2010-06-23 2013-09-09 スリーエム イノベイティブ プロパティズ カンパニー 屋内無線アプリケーションのための接着剤付きケーブル配線システム
JP2013229772A (ja) * 2012-04-26 2013-11-07 Fujikura Ltd 漏洩同軸ケーブル

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JP6654739B2 (ja) 2020-02-26
JPWO2019054488A1 (ja) 2019-11-07
CN110998975A (zh) 2020-04-10
CN110998975B (zh) 2022-07-22

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