Specially-shaped-structure coaxial electric cable

A coaxial cable and special-shaped technology, applied in the direction of circuits, electrical components, waveguides, etc., can solve the problems of small attenuation, low standing wave ratio, large attenuation, etc., and achieve the effect of low attenuation, small standing wave ratio and stable structure

Inactive Publication Date: 2014-09-10
安徽宏源特种电缆集团有限公司
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AI Technical Summary

Problems solved by technology

[0002] With the development of China's military technology, more and more high-end advanced weapons have been developed and manufactured, with smaller attenuation, lower VSWR, and higher frequency of use are increasingly used in the field of communication, usually The tin-impregnated semi-flexible coaxial cable used has relatively large attenuation, while the microwave low-loss cable adopts the structure of wrapped polytetrafluoroethylene microporous tape, and is limited by equipment and materials, so there is a certain difficulty in processing.

Method used

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  • Specially-shaped-structure coaxial electric cable

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with the accompanying drawings.

[0010] A silver-plated copper conductor with a silver layer thickness of 2 μm is used as the conductor 1, and polytetrafluoroethylene with a special-shaped structure is extruded outside the conductor 1 as the insulating layer 2. Since it is extruded with a special-shaped structure, the compression ratio should be selected between 300-400. The polytetrafluoroethylene insulation layer has an octagonal structure. Although the dielectric constant can be further reduced by using a pentagonal or hexagonal structure, the cable structure is unstable, resulting in poor cable consistency and eventually resulting in an excessive standing wave ratio. Wrap the silver-plated flat copper strip 3 on the outside of the polytetrafluoroethylene insulating layer 2, and the covering rate is not less than 30%; use a braiding machine to weave the silver-plated copper wire confinement layer 4 ...

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Abstract

The invention discloses a specially-shaped-structure coaxial electric cable. A silver-plated copper conductor is adopted. The silver-plated copper conductor is extruded by a polytetrafluoroethylene insulation layer, and the polytetrafluoroethylene insulation layer is of an octagon-shaped structure. A silver-plated flat copper band wraps the polytetrafluoroethylene insulation layer. A silver-plated copper wire is woven outside the silver-plated flat copper band to form a locking layer. The locking layer is extruded by a polyperfluorinated ethylene-propylene sheath. The specially-shaped-structure coaxial electric cable is stable in structure. Because polytetrafluoroethylene is adopted as an insulation material and a specially-shaped structure is adopted, the electric cable of an insulation structure is more compact and more stable than an electric cable of a wrapping structure, and stable electrical performance of the electric cable is guaranteed.

Description

technical field [0001] The invention belongs to the field of electric wires and cables, and in particular relates to a coaxial cable with a special-shaped structure. Background technique [0002] With the development of China's military technology, more and more high-end advanced weapons have been developed and manufactured, with smaller attenuation, lower VSWR, and higher frequency of use are increasingly used in the field of communication, usually The tin-impregnated semi-flexible coaxial cable used has relatively large attenuation, while the microwave low-loss cable adopts the wrapping polytetrafluoroethylene microporous tape structure, which is limited by equipment and materials, and has certain processing difficulties. Contents of the invention [0003] In order to overcome the above-mentioned shortcomings, the patent of the present invention provides a special-shaped coaxial cable, which can meet the market's requirements for the use frequency below 10GHz. [0004] ...

Claims

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Application Information

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IPC IPC(8): H01P3/06
Inventor姜绪宏贾超张小平张明月姜茂盛
Owner安徽宏源特种电缆集团有限公司