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Radio frequency coaxial cable

A radio frequency coaxial cable and insulating layer technology, applied in the direction of circuits, electrical components, waveguides, etc., can solve the problems affecting the signal quality of cable television, unsatisfactory shielding effect, crosstalk of transmission signals, etc., and achieve stable transmission data performance and mechanical performance Stable and good anti-interference ability

Inactive Publication Date: 2015-04-15
蒋宏伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the shielding of the cable is not good, the transmission signal will not only be crosstalked by external clutter, which will affect the quality of the cable TV signal, but will also leak out and interfere with other signals
The shielding effect of the RF coaxial cable currently on the market is not ideal, so a new RF coaxial cable is needed

Method used

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  • Radio frequency coaxial cable

Examples

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Effect test

Embodiment Construction

[0013] Such as figure 1 As shown, a radio frequency coaxial cable includes an inner conductor 1 , an insulating layer, an outer conductor 4 and a sheath 8 .

[0014] The inner conductor 1 is a silver-plated copper wire, and an insulating layer is extruded on the conductor. The insulating layer has two layers, the inner insulating layer 2 is solid polyfluoroethylene propylene, the outer insulating layer 3 is solid polyethylene, and the outer diameter of the insulating layer is 1.90-5.08cm. Aluminum foil outer conductor 4 is longitudinally wrapped on the insulating layer, copper wire braided inner shielding layer 5, copper tape intermediate shielding layer 6, copper wire braided outer shielding layer 7, copper wire braided outer shielding layer 7 are arranged on the aluminum foil outer conductor 4 from inside to outside Extrude the bag sheath 8 on.

[0015] The sheath 8 is a low-smoke halogen-free flame-retardant polyolefin sheath or a polyvinyl chloride sheath.

[0016] The ...

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Abstract

The invention relates to a cable, particularly relates to a radio frequency coaxial cable, and belongs to the technical field of cable manufacturing. The radio frequency coaxial cable comprises an internal conductor, insulating layers, an external conductor and a sheath. The internal conductor is a silver-plated copper wire. The conductor is extruded by the insulating layers. There are two insulating layers, wherein the internal layer is solid perfluorinated ethylene-propylene, and the external layer is solid polyethylene. The external diameter of the insulating layers is 1.90-5.08cm. The insulating layers are longitudinally wrapped by the aluminum foil external conductor which is provided with, from inside to outside, a copper wire braiding shielding layer, a copper tape shielding layer and a copper wire braiding shielding layer. The external copper wire braiding shielding layer is extruded by the sheath. The cable is excellent in shielding performance, wide in use frequency band, stable in performance and attenuation is low.

Description

technical field [0001] The invention relates to a cable, in particular to a radio frequency coaxial cable, and belongs to the technical field of cable manufacturing. Background technique [0002] Radio frequency cable is a cable that transmits electromagnetic energy in the radio frequency range. It is an indispensable component in various radio communication systems and electronic equipment. It is widely used in wireless communication and broadcasting, television, radar, navigation, computers and instruments. As the most commonly used structural form of radio frequency cables, radio frequency coaxial cables are required to have small attenuation, high shielding performance, wide frequency bandwidth and stable performance. Among them, shielding characteristics are a parameter to measure the anti-interference ability of coaxial cables. An important parameter for shaft cable leakage prevention. If the shielding of the cable is not good, the transmission signal will not only be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P3/06
Inventor 蒋宏伟
Owner 蒋宏伟
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