Semi-flexible low loss coaxial radio frequency cable for mobile base station

Abstract

The invention discloses a semi-flexible low loss coaxial radio frequency cable for a mobile base station. The invention is characterized in that: an inner conductor is a copper wire or a copper clad steel wire; and the inner conductor is coated with a composite insulating layer consisting of a first insulating layer and a second insulating layer, a shielding insulating layer, an outer conductor and an outer sheath layer from inside to outside sequentially. The invention has the advantages that expensive gold and silver are saved; the usage of polyfluortetraethylene ten times more expensive than polyethylene is greatly reduced; the cost is obviously reduced; and the cable has good shielding property, high using frequency, low loss, small attenuation and standing-wave ratio and long transmitting distance, can reduce the amount of the base stations in the coverage area and reduce the transmitting cost, and has obvious economic benefit.

Description

technical field [0001] The invention relates to a low-loss coaxial radio frequency cable, especially a coaxial radio frequency cable in which the inner conductor is a copper wire conductor, the intermediate insulating layer is a composite insulating material, and the outer conductor is a metal wire braided and dipped in tin as a whole. lossy coaxial RF cable. Background technique [0002] At present, in the signal transmission between mobile communication, radar, satellite navigation and electronic countermeasures and other high-frequency equipment in my country, the semi-flexible coaxial radio frequency cable is used. The inner conductor is composed of silver-plated copper-clad steel wire or silver-plated copper wire. Tetrafluoroethylene is used as the intermediate insulating material, and the wire mesh impregnated with tin as a whole is used as the semi-flexible outer conductor. The price of the insulating material polytetrafluoroethylene is more than ten times that of the ...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing semi-flexible coaxial radio frequency cables, such as high price, large signal attenuation, and limited transmission distance, the present invention provides a semi-flexible low-loss coaxial radio frequency cable for mobile base stations, which can be used without precious metal silver and is cheap High-quality insulating material and a very small amount of polytetrafluoroethylene form a composite insulating layer, which makes the high-frequency signal attenuation small, low loss, long-distance transmission, and low-cost transmission

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