WO2020103150A1 - 广角辐射型漏缆 - Google Patents

广角辐射型漏缆

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Publication number
WO2020103150A1
WO2020103150A1 PCT/CN2018/117275 CN2018117275W WO2020103150A1 WO 2020103150 A1 WO2020103150 A1 WO 2020103150A1 CN 2018117275 W CN2018117275 W CN 2018117275W WO 2020103150 A1 WO2020103150 A1 WO 2020103150A1
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WO
WIPO (PCT)
Prior art keywords
slot
wide
angle
leaky cable
outer conductor
Prior art date
Application number
PCT/CN2018/117275
Other languages
English (en)
French (fr)
Inventor
林垄龙
赵瑞静
蓝燕锐
王斌
徐宗铭
许波华
黄德兵
Original Assignee
中天射频电缆有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中天射频电缆有限公司 filed Critical 中天射频电缆有限公司
Priority to PCT/CN2018/117275 priority Critical patent/WO2020103150A1/zh
Priority to RU2019128556A priority patent/RU2753842C2/ru
Priority to EP18918415.3A priority patent/EP3890114A4/en
Priority to CN201911155415.5A priority patent/CN111009733B/zh
Publication of WO2020103150A1 publication Critical patent/WO2020103150A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/20—Non-resonant leaky-waveguide or transmission-line antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/203—Leaky coaxial lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/06—Coaxial lines
    • 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

Definitions

  • the invention relates to the technical field of cables, in particular to a wide-angle radiating leaky cable.
  • the leaky cable has both the signal transmission function and the antenna radiation function, and uses the slot on the outer conductor to communicate with the external space wirelessly.
  • Leaky cables have the advantages of uniform signal coverage and easy installation. They are widely used in tunnels, mines, subways, tunnels, and other narrow spaces, high-speed trains, and wireless communication systems in indoor buildings. The development prospect is very broad. When performing wireless coverage indoors, since the indoor environment is more complicated, the signal coverage needs to be uniform and there is no dead angle, so a larger radial radiation angle of the leaky cable is needed to eliminate the signal dead angle.
  • the frequency of use is getting higher and higher.
  • the size of the slot of the leaky cable is getting smaller and smaller. Therefore, the radial radiation range of the leaky cable at high frequency is getting smaller and smaller.
  • the compatibility of existing slots is getting worse, it is difficult to be compatible with low-frequency coupling and high-frequency attenuation, which increases the cost of indoor signal coverage.
  • the technical solution provided by the invention is: a wide-angle radiating leaky cable, which is provided with an inner conductor, an insulating layer, an outer conductor and an outer sheath in sequence from the inside to the outside, and a plurality of A slot base block composed of several slot modules, and each slot module includes several independent slot units.
  • each slot unit has a length of 1 to 200 mm and a width of 0.1 to 10 mm.
  • slot unit and the outer conductor axially intersect perpendicularly or obliquely.
  • each slot module is 170 ° -360 °, which is used for long-distance transmission of microwave signals and signal coverage.
  • the slot units of each of the slot modules are staggered and disconnected, and the minimum distance between the adjacent ends of the adjacent slot units on the expansion surface of the outer conductor is 0.5-50 mm.
  • each of the slot base blocks includes at least one slot module, and the slot modules are arranged along the axial direction of the outer conductor.
  • the interval between adjacent slot modules of the same slot base block along the axial direction of the outer conductor is 1 to 1200 mm.
  • a plurality of the slot base blocks are opened at equal intervals along the axial direction of the outer conductor, and the interval along the axial direction is 5 to 2000 mm.
  • each of the slot units includes rectangular, L-shaped, U-shaped, triangular, T-shaped, E-shaped, or their deformed structures.
  • each slot unit two ends of each slot unit are provided with a chamfer, and the radius of the chamfer is 0-5 mm.
  • a wide-angle radiating leaky cable provided by the present invention is provided with an inner conductor, an insulating layer, an outer conductor and an outer sheath in this order from the inside to the outside Several slot base blocks composed of several slot modules, each of the slot modules includes several independent slot units.
  • the wide-angle radiating leaky cable of the present invention adopts a distributed leakage method to achieve wide-angle radiation.
  • Each slot module is provided with several independent slot units, which solves the problem that the high-frequency signal coverage slot becomes shorter and the low-frequency radiation intensity becomes weaker.
  • the high-frequency radial coverage angle is insufficient, and the specially designed slot unit is used to reduce high-frequency attenuation, making the leaky cable compatible with low-frequency coupling and high-frequency attenuation, and has good signal combining ability, greatly reducing indoor coverage the cost of.
  • FIG. 1 is a schematic structural diagram of a wide-angle radiating leaky cable in the first embodiment of the present invention.
  • FIG. 2 is a schematic structural view of the outer conductor shown in FIG. 1 in the second embodiment.
  • FIG. 3 is a schematic structural view of the outer conductor shown in FIG. 1 in the third embodiment.
  • FIG. 4 is a schematic structural view of the outer conductor shown in FIG. 1 in the fourth embodiment.
  • a wide-angle radiating leaky cable provided by the present invention includes:
  • the inner conductor 1 is a copper conductor, an aluminum conductor, an electroplated copper clad aluminum conductor, an electroplated copper clad copper conductor, a copper clad aluminum conductor, a copper clad copper conductor, or a copper clad steel conductor.
  • a copper strip can be longitudinally welded into a copper tube and then crimped to form a spiral corrugated inner conductor 1.
  • the cross section is circular.
  • Insulation layer 2 covering the outer layer of the inner conductor 1, in a specific embodiment, it may be foamed polyethylene, PTFE (Polytetrafluoroethylene, polytetrafluoroethylene) or FEP (Fluorinated ethylenepropylene), fluorinated ethylene propylene copolymerization Thing, also known as perfluoroethylene propylene copolymer).
  • PTFE Polytetrafluoroethylene, polytetrafluoroethylene
  • FEP Fluorinated ethylenepropylene
  • Thing also known as perfluoroethylene propylene copolymer
  • each slot module 7 includes a plurality of slot units 8.
  • Each of the slot units 8 is independent and is not connected or conductive.
  • the slot base blocks opened in an axial array on the wall of the circular outer conductor 3 have the same direction of several slot modules 7 on each slot base block, It intersects the axial direction of the outer conductor 3 diagonally; and each of the slot modules 7 includes two slot units 8 staggered and distributed on mutually different cross-sectional planes, and each slot unit 8 is rectangular ,
  • the chamfering radius of the adjacent end of the slot unit 8 on the same slot module 7 is 0.2 mm, while the far ends
  • the chamfering radius is 1.5 mm, where: each of the slot units 8 has a length of 18 mm and a width of 3 mm, and the angle between the slot unit 8 and the axial direction is 45 °; the minimum staggered spacing of the slot units 8 is 3mm.
  • the radial radiation angle of the leaky cable reaches 180 °, and is compatible with the performance of 80 to 3600 MHz.
  • each slot unit 8 has a length of 15 mm and a width of 2 mm; the minimum staggered distance between adjacent slot units 8 in any slot module 7 in the same direction on the left side of the slot base block is 2mm, the angle between the upper slot unit 8 of the slot module 7 and the axial direction is 55 °, the angle between the lower slot unit 8 and the axial direction is 35 °
  • each slot base block shown in the figure opened on the wall of the circular outer conductor 3 along the axial array, and each slot base block has several slot modules 7 It is in the shape of a figure of eight, including three of the slot modules 7 in each direction, and each of the slot modules 7 includes three slot units 8 on the same cross-sectional plane, and each slot unit 8 is rectangular.
  • each of the slot modules 7 The length of the middle slot unit 8 is 8mm, the length of the slot unit 8 on the upper and lower sides is 5mm, and the width is 2mm;
  • the staggered spacing is the same, 2mm, the angle between the slot unit 8 and the axial direction is 40 °, the spacing between adjacent slot modules 7 along the axis is the same, 20mm; of the three slot modules 7 on the right side of the slot base block
  • the minimum offset distance between the slot units 8 is the same, 2 mm, the angle between the slot unit 8 and the axial direction is 140 °, and the offset distance between adjacent slot modules 7 along the axis is the same, 20 mm.
  • the adjacent slot modules on the left and right sides of the slot base block are offset by 45 mm in the axial direction.
  • the radial radiation angle of the leaky cable reaches 220
  • each of the slot modules 7 includes two slot units 8 on the same cross-sectional plane, and each of the slot units 8 is rectangular, projecting the slot module 7 at the maximum distance from the median line
  • the end chamfering radius of each slot unit 8 is 0.3 mm, wherein: each slot unit 8 has a length of 8 mm and a width of 3 mm, adjacent to the slot The smallest staggered distance of unit 8 is the same, 1mm.
  • the axial distance between adjacent slot modules 7 is 28 mm, 11 mm, 19 mm, 11 mm, 19 mm, 11 mm, and 28 mm from left to right, respectively.
  • the radial radiation angle of the leaky cable reaches 185 °, and it is compatible with the performance of 80 to 3600 MHz.
  • the number of the slot modules 7 on each slot base block may be one or more, which is not limited to this embodiment; in other embodiments, each of the slot units 8 The length is 1 to 200 mm and the width is 0.1 to 10 mm, which is not limited to the above-mentioned embodiment; the minimum staggered distance between the adjacent slot units 8 on the outer conductor development surface is 0.5 to 50 mm, and is not limited to the above-mentioned embodiment.
  • Each of the slot units 8 may be rectangular, L-shaped, U-shaped, triangular, T-shaped, E-shaped, or a deformed structure thereof. In other embodiments, the angle at which the slot unit 8 and the outer conductor 3 intersect diagonally is not limited to this embodiment.
  • the direction and offset pitch of several slot modules 7 in the same slot base block may be partially the same, completely the same, or completely different, and is not limited to this embodiment.
  • the axial spacing of several slot modules 7 of the same slot base block is between 1 and 1200 mm, which is not limited to this embodiment.
  • the directions of the plurality of slot modules 7 of the same slot base block are not limited to the same direction or the opposite direction, and may also be intersecting in different planes.
  • the direction of several slot units 8 of the same slot module 7 may be partially the same or completely the same, or may be completely different.
  • the micro-angle deviation caused by processing errors is a normal system error and does not deviate from this. The gist of the invention.
  • the slot base blocks shown in FIGS. 1 to 4 are only the basic units with slots on the outer conductor. In practical applications, a plurality of such basic units are arranged on the outer conductor to fulfill the functional requirements
  • the axial offset distance between adjacent basic units may be 210mm, 262mm, etc. It can be understood that, according to the different slot modules 7 and slot units 8 contained therein, the distance may be between 5-2000mm The change between the two makes it meet the performance design requirements, and is not limited to this embodiment.
  • the radial radiation angle can be increased to between 170 ° and 360 °, which is not limited to the above embodiment.
  • the outer sheath 4 covers the outer layer of the outer conductor 3, and its material includes polyethylene or flame-retardant polyolefin.
  • the cross section may be circular, semi-circular, rectangular, fan-shaped, or a deformed structure thereof.
  • the wide-angle radiating leaky cable of the present invention adopts a distributed leakage method to achieve wide-angle radiation, with a radial radiation angle of more than 170 °, both low-frequency coupling and high-frequency attenuation characteristics, suitable for long-distance transmission of microwave signals and Signal coverage, with good signal combining ability, greatly reducing the cost of indoor coverage

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  • Waveguide Aerials (AREA)
  • Insulated Conductors (AREA)

Abstract

一种广角辐射型漏缆，由内而外依次设有内导体（1）、绝缘层（2）、外导体（3）及外护套（4），在外导体（3）壁上等间距开设有若干由数个槽缝模块（7）组成的槽缝基块，每一槽缝模块（7）包括数个独立的槽缝单元（8）。该广角辐射型漏缆采用分布式的漏泄方式来实现广角辐射，每一槽缝模块（7）设置数个独立的槽缝单元（8），解决为实现高频信号覆盖，辐射槽缝变短而低频辐射强度变弱且高频径向覆盖角度变窄的不足，特殊设计的槽缝单元（8）用以降低高频衰减，使得漏缆兼容低频耦合以及高频衰减，具有很好的信号合路能力，大大降低室内覆盖的成本。

Description

广角辐射型漏缆 技术领域
本发明涉及线缆技术领域，特别是指一种广角辐射型漏缆。
背景技术
本部分旨在为权利要求书中陈述的本发明的实施方式提供背景或上下文。此处的描述不因为包括在本部分中就承认是现有技术。
漏缆既具有信号传输作用，又有天线辐射功能，其利用外导体上的槽孔与外部空间进行无线通信。漏缆具有信号覆盖均匀、容易安装等优点，被广泛应用于隧道、矿井、地铁、坑道等狭窄空间，高速列车以及室内楼宇的无线通信系统中，发展前景十分广阔。在室内进行无线覆盖时，由于室内环境比较复杂，需要信号覆盖均匀且没有死角，因此需要更大的漏缆径向辐射角度以消除信号死角。
随着通信技术的发展，使用频率越来越高，为了满足高频信号的使用，漏缆槽孔尺寸越来越小，因此，漏缆在高频的径向辐射范围也越来越小，无法满足室内广角覆盖消除信号死角的需求。同时，随着使用频段越来越宽，现有槽孔的兼容性越来越差，很难兼容低频耦合以及高频衰减，使得室内信号覆盖成本增加。
发明内容
鉴于以上内容，有必要提供一种广角辐射型漏缆，其径向辐射角度广，达170°以上，且耦合损耗小，高低频兼容性好，径向信号覆盖范围大且均匀度高。
本发明提供的技术方案为：一种广角辐射型漏缆，由内而外依次设有内导体、绝缘层、外导体及外护套，在所述外导体壁上等间距开设有若干由数个槽缝模块组成的槽缝基块，每一所述槽缝模块包括数个独立的槽缝单元。
进一步地，每一所述槽缝单元的长度为1～200mm，宽度为0.1～10mm。
进一步地，所述槽缝单元与外导体轴向垂直或斜向相交。
进一步地，每一所述槽缝模块的径向辐射角度为170°～360°，用于微波信号的长距离传输和信号覆盖。
进一步地，每一所述槽缝模块的数个槽缝单元一一错开不连通，相邻槽缝单元的邻近端部在外导体展开面上的最小距离为0.5～50mm。
进一步地，每一所述槽缝基块包括至少一个槽缝模块，所述槽缝模块沿外导体轴向排设。
进一步地，同一所述槽缝基块的相邻所述槽缝模块沿外导体轴向的间距为1～1200mm。
进一步地，同一所述槽缝基块的相邻所述槽缝模块的方向相同或相反。
进一步地，若干所述槽缝基块沿外导体轴向等间距开设，沿轴向的间距为5～2000mm。
进一步地，每一所述槽缝单元包括矩形、L形、U形、三角形、T形、E形、或它们的变形结构。
进一步地，每一所述槽缝单元的两端设置有倒角，倒角半径为0～5mm。
与现有技术相比，本发明提供的一种广角辐射型漏缆，由内而外依次设有内导体、绝缘层、外导体及外护套，在所述外导体壁上等间距开设有若干由数个槽缝模块组成的槽缝基块，每一所述槽缝模块包括数个独立的槽缝单元。本发明的广角辐射型漏缆采用分布式的漏泄方式来实现广角辐射，每一槽缝模块设置数个独立的槽缝单元，解决为实现高频信号覆盖槽缝变短而低频辐射强度变弱且高频径向覆盖角度变窄的不足，且特殊设计的槽缝单元用以降低高频衰减，使得漏缆兼容低频耦合以及高频衰减，具有很好的信号合路能力，大大降低 室内覆盖的成本。
附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图1为本发明第一实施方式中广角辐射型漏缆的结构示意图。
图2为图1所示的外导体在第二实施方式中的结构示意图。
图3为图1所示的外导体在第三实施方式中的结构示意图。
图4为图1所示的外导体在第四实施方式中的结构示意图。
附图标记说明:
内导体 1
绝缘层 2
外导体 3
槽缝模块 7
槽缝单元 8
外护套 4
如下具体实施方式将结合上述附图进一步说明本发明实施例。
具体实施方式
为了能够更清楚地理解本发明实施例的上述目的、特征和优点，下面结合附图和具体实施方式对本发明进行详细描述。需要说明的是，在不冲突的情况下，本申请的实施方式中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本发明实施例，所描述的实施方式仅是本发明一部分实施方式，而不是全部的实施方式。基于本发明中的实施方式，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施方式，都属于本发明实施例保护的范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明实施例的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明实施例。
请参阅图1，本发明提供的一种广角辐射型漏缆，由内而外依次包括：
内导体1，为铜导体、铝导体、电镀铜包铝导体、电镀铜包铜导体、铜包铝导体、铜包铜导体、或铜包钢导体。在一具体实施方式中，可以采用铜带经过纵包焊接成铜管后经轧纹构成螺旋形皱纹内导体1。本实施方式中，其截面为圆形。
绝缘层2，包覆于所述内导体1外层，在具体实施方式中可以为发泡聚乙烯、PTFE(Poly tetra fluoroethylene，聚四氟乙烯)或FEP(Fluorinated ethylene propylene，氟化乙烯丙烯共聚物，也称全氟乙烯丙烯共聚物)。
外导体3，在所述外导体壁3上等间距开设有若干由数个槽缝模块7组成的槽缝基块，每一所述槽缝模块7包括数个的槽缝单元8。每一所述槽缝单元8为独立的，不连通或导通。
如图1示出的第一实施方式中，圆形外导体3壁上沿轴向阵列开设的槽缝基块，其每一槽缝基块上数个所述槽缝模块7的方向一致，与外导体3的轴向斜向相交；而且每一所述槽缝模块7包括2个错开分布在相互平行的异面截平面上的槽缝单元8，每一所述槽缝单元8为矩形，将所述槽缝模块7投射于与其中线距离最远的纵剖面上时，同一槽缝模块7上的槽缝单元8邻近的端部倒角半径为0.2mm，而远离的两端部倒角半径为1.5mm，其中：每一所述槽缝单元8的长度为18mm，宽度为3mm，槽缝单元8与轴向夹角为45°；槽缝单元8的最小错开间距相同，为3mm。本实施方式中，漏缆的径向辐射角度达180°，且能兼容80～3600MHz的性能。
如图2示出的第二实施方式中，圆形外导体3壁上沿轴向阵列开 设图中示出的槽缝基块，每一槽缝基块上数个所述槽缝模块7呈八字形，八字左右两边各包括4个所述槽缝模块7，每一所述槽缝模块7包括2个错开分布槽缝单元8，每一所述槽缝单元8为矩形，将所述槽缝模块7投射于与其中线距离最远的纵剖面上时，同一槽缝模块7上的槽缝单元8邻近的端部倒角半径为0.1mm，而远离的两端部倒角半径为1mm，其中：每一所述槽缝单元8的长度为15mm，宽度为2mm；槽缝基块中左边同向的任一个槽缝模块7中的相邻槽缝单元8之间的最小错开间距为2mm，槽缝模块7上部槽缝单元8与轴向夹角为55°，下部槽缝单元8与轴向夹角为35°，相邻槽缝模块7沿轴线的错开间距相同，为27mm；槽缝基块八字右边的4个槽缝模块7中的槽缝单元8之间的最小错开间距为4mm，槽缝模块7上部槽缝单元8与轴向夹角为110°，下部槽缝单元8与轴向夹角为125°，相邻槽缝模块7沿轴线的错开间距相同，为27mm。槽缝基块八字左右两边的相邻槽缝模块沿轴向的错开间距为50mm。上述实施方式中，漏缆的径向辐射角度达200°，且能兼容80～3800MHz的性能。
如图3示出的第三实施方式中，圆形外导体3壁上沿轴向阵列开设的图中所示的槽缝基块，每一槽缝基块上数个所述槽缝模块7呈八字形，每一方向上包含3个所述槽缝模块7，每一所述槽缝模块7包括3个处于同一截平面上的槽缝单元8，每一所述槽缝单元8为矩形，将所述槽缝模块7投射于与其中线距离最远的纵剖面上时，同一槽缝模块7的槽孔单元8的端部倒角半径为0mm，其中：每一所述槽缝模块7的中间槽缝单元8的长度为8mm，上下两边的槽缝单元8的长度为5mm，宽度为2mm；槽缝基块八字左边的3个槽缝模块7中的槽缝单元8之间的最小错开间距相同，为2mm，槽缝单元8与轴向夹角为40°，相邻槽缝模块7沿轴线的间距相同，为20mm；槽缝基块八字右边的3个槽缝模块7中的槽缝单元8之间的最小错开间距相同，为2mm，槽缝单元8与轴向夹角为140°，相邻槽缝模块7沿轴线的错开间距相同，为20mm。槽缝基块八字左右两边的相邻槽缝 模块沿轴向的错开间距为45mm。本实施方式中，漏缆的径向辐射角度达220°，且能兼容80～6000MHz的性能。
如图4示出的第四实施方式中，圆形外导体3壁展开面上阵列的槽缝基块，每一槽缝基块中数个所述槽缝模块7的方向与外导体的轴向垂直，每一所述槽缝模块7包括2个处于同一截平面上的槽缝单元8，每一所述槽缝单元8为矩形，将所述槽缝模块7投射于与其中线距离最远的纵剖面上时，每一所述槽缝单元8的端部倒角半径为0.3mm，其中：每一所述槽缝单元8的长度为8mm，宽度为3mm，相邻所述槽缝单元8最小的错开间距相同，为1mm。相邻所述槽缝模块7沿轴向的间距从左往右分别为28mm、11mm、19mm、11mm、19mm、11mm、28mm。本实施方式中，漏缆的径向辐射角度达185°，且能兼容80～3600MHz的性能。
在其他实施方式中，每一槽缝基块上的数个所述槽缝模块7可以为一个及以上，不限定为本实施方式；在其他实施方式中，每一所述槽缝单元8的长度为1～200mm，宽度为0.1～10mm，不限定为上述实施方式；相邻所述槽缝单元8在外导体展开面上最小错开间距为0.5～50mm，不限定为上述实施方式。每一所述槽缝单元8可以是矩形、L形、U形、三角形、T形、E形、或它们的变形结构。在其他实施方式中，所述槽缝单元8与外导体3斜向相交的角度不限定为本实施方式。在其他实施方式中，同一槽缝基块中的数个槽缝模块7的方向、错开间距可以部分相同、完全相同或完全不相同，不限定为本实施方式。在其他实施方式中，同一槽缝基块的数个槽缝模块7的轴向间距为1～1200mm之间，不限定为本实施方式。在其他实施方式中，同一槽缝基块的数个槽缝模块7的方向不限定为同向或反向，还可以是异面相交状。在其他实施方式中，同一槽缝模块7的数个槽缝单元8的方向可以部分相同或完全相同，也可完全不相同，因加工误差引起的微角度偏移属于正常的系统误差不脱离本发明的主旨。
在具体实施方式中，图1～4中示出的槽缝基块仅为外导体上开设 槽缝的基础单元，实际应用中，外导体上排设有多个这样的基础单元来实现功能需求，本实施方式中，相邻的基础单元的轴向错开间距可以是210mm、262mm等，可以理解，根据其包含的槽缝模块7、槽缝单元8的不同，该距离可以在5-2000mm之间变化，使其满足性能设计的要求，不限定为本实施方式。基于槽缝模块7、槽缝单元8的组合设计，其径向辐射角度能够增大为170°至360°之间，不限定为上述实施方式。
外护套4，包覆于所述外导体3外层，其材质包括聚乙烯或阻燃聚烯烃。本实施方式中，其截面可以为圆形、半圆形、矩形、扇形、或它们的变形结构。
综上，本发明的广角辐射型漏缆采用分布式的漏泄方式来实现广角辐射，径向辐射角度达170°以上，兼具低频耦合及高频衰减特性，适用于微波信号的长距离传输和信号覆盖，具有很好的信号合路能力，大大降低室内覆盖的成本
以上实施方式仅用以说明本发明实施例的技术方案而非限制，尽管参照以上较佳实施方式对本发明实施例进行了详细说明，本领域的普通技术人员应当理解，可以对本发明实施例的技术方案进行修改或等同替换都不应脱离本发明实施例的技术方案的精神和范围。

Claims (11)

  1. 一种广角辐射型漏缆，由内而外依次设有内导体、绝缘层、外导体及外护套，其特征在于：在所述外导体壁上等间距开设有若干由数个槽缝模块组成的槽缝基块，每一所述槽缝模块包括数个独立的槽缝单元。
  2. 根据权利要求1所述的广角辐射型漏缆，其特征在于：每一所述槽缝单元的长度为1～200mm，宽度为0.1～10mm。
  3. 根据权利要求1所述的广角辐射型漏缆，其特征在于：所述槽缝单元与外导体轴向垂直或斜向相交。
  4. 根据权利要求1所述的广角辐射型漏缆，其特征在于：每一所述槽缝模块的径向辐射角度为170°～360°。
  5. 根据权利要求1所述的广角辐射型漏缆，其特征在于：每一所述槽缝模块的数个槽缝单元一一错开不连通，相邻槽缝单元的邻近端部在外导体展开面上的最小距离为0.5～50mm。
  6. 根据权利要求1所述的广角辐射型漏缆，其特征在于：每一所述槽缝基块包括至少一个槽缝模块，所述槽缝模块沿外导体轴向排设。
  7. 根据权利要求6所述的广角辐射型漏缆，其特征在于：同一所述槽缝基块的相邻所述槽缝模块沿外导体轴向的间距为1～1200mm。
  8. 根据权利要求6所述的广角辐射型漏缆，其特征在于：同一所述槽缝基块的相邻所述槽缝模块的方向相同或相反。
  9. 根据权利要求1所述的广角辐射型漏缆，其特征在于：若干所述槽缝基块沿外导体轴向等间距开设，沿轴向的间距为5～2000mm。
  10. 根据权利要求1所述的广角辐射型漏缆，其特征在于：每一所述槽缝单元包括矩形、L形、U形、三角形、T形、E形、或它们的变形结构。
  11. 根据权利要求1所述的广角辐射型漏缆，其特征在于：每一所述槽缝单元的两端设置有倒角，倒角半径为0～5mm。
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