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Leakage coaxial cable and manufacturing method thereof

A leaky coaxial cable and outer conductor technology, applied to circuits, electrical components, leaky waveguide antennas, etc., can solve the problems of increased cable production costs, price increases, and shortage of copper resources, and achieve high structural stability and reduced usage , good bending performance

Inactive Publication Date: 2011-01-19
ROSENBERGER (SHANGHAI) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the increase in the amount and scope of copper used, copper resources are in short supply and prices continue to rise, which greatly increases the cost of producing cables

Method used

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  • Leakage coaxial cable and manufacturing method thereof
  • Leakage coaxial cable and manufacturing method thereof
  • Leakage coaxial cable and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] In this embodiment, the inner conductor 1 is folded copper tube, the insulating layer 2 is physical foamed polyethylene with high foaming degree, the sheath layer 4 is made of halogen-free flame-retardant polyethylene, and the outer conductor 3 is a self-adhesive structure. Smooth grooved copper-plastic composite tape. The thickness of the smooth slotted copper-plastic composite tape with self-adhesive structure is 0.08mm, and the thickness of the copper base tape is 0.04mm. Compared with the existing products, the actual amount of copper used in the leakage coaxial cable of this embodiment is only the original 40% (calculated on the basis that the thickness of the pure copper strip of the existing leaky coaxial cable is 0.1 mm), effectively reducing the amount of copper used and saving costs.

[0028] After longitudinally wrapping the smooth slotted copper-plastic composite tape with self-adhesive structure on the insulating layer 2, extruding to form the sheath layer ...

Embodiment 2

[0030] This embodiment is basically the same as the leaky coaxial cable described in Embodiment 1, and will not be described in detail here for simplicity. The difference between embodiment 2 and embodiment 1 is that the inner conductor 1 is a smooth copper tube, and the thickness of the smooth grooved copper-plastic composite tape with self-adhesive structure adopted by the outer conductor 3 is 0.06 mm, and the thickness of the copper base tape is 0.02 mm. mm, compared with existing products, the actual amount of copper used in the leaky coaxial cable of this embodiment has only 20% of the original (calculated with the pure copper strip thickness of the existing leaky coaxial cable as 0.1mm), which also effectively reduces The amount of copper used is reduced and the cost is saved.

[0031] The leaky coaxial cable of the present invention has high structural stability and good bending performance. At the same time, due to the use of metal foil with self-adhesive structure, th...

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Abstract

The invention provides a leakage coaxial cable, comprising an inner conductor, an insulation layer, an outer conductor and a sheathing layer which are sequentially arranged from inside to outside; wherein the outer conductor is provided with a notch, the outer conductor is a metal composite layer provided with self-adhesion structure and is bonded with the insulation layer into a whole. The invention also provides a manufacturing method of the leakage coaxial cable, including that: a metal foil provided with self-adhesion structure is longitudinally wrapped onto the insulation layer; the sheathing layer is subject to extrusion moulding; and cooling is carried out in a cooling water tank. The leakage coaxial cable of the invention has high structural stability and good bending property; besides, the metal foil provided with self-adhesion structure is adopted, metal dosage is reduced, metal strip embossing or coining and lapping after longitudinal wrapping in the existing process are eliminated, production efficiency is improved, and production cost is reduced.

Description

technical field [0001] The invention relates to a coaxial cable and a manufacturing method thereof, in particular to a leaky coaxial cable and a manufacturing method thereof. Background technique [0002] Leaky coaxial cables radiate and receive electromagnetic wave signals outward by setting openings on the outer conductors, so they have dual functions of signal transmission lines and transceiver antennas, and are mainly used in occasions where wireless signal propagation is poor, such as tunnels, subways, underground buildings, mountainous areas, etc. environment. In the prior art, the spacing and shape of the outer conductor openings are usually optimized to reduce the variation of coupling loss and transmission loss of the leaky coaxial cable. [0003] figure 1 It is a schematic diagram after the end of a leakage coaxial cable of the prior art is cut open, such as figure 1 As shown, the leaky coaxial cable includes an inner conductor 10 , an insulating layer 20 , an o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P3/06H01P11/00H01Q13/20
Inventor 程文亮
Owner ROSENBERGER (SHANGHAI) TECH CO LTD
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