Radio frequency cable internal conductor and half flexible coaxial radio frequency cable

Abstract

The invention relates to a radio frequency cable internal conductor and a half flexible coaxial radio frequency cable. The inner conductor of the radio frequency cable successively comprises an aluminum conductor core (7), a copper layer (6), and a silver layer (5) from the inside to the outside; the copper layer (6) wraps the outer surface of the aluminum conductor core (7); and the silver layer (5) wraps the outer layer of the copper layer (6). The radio frequency cable internal conductor and half flexible coaxial radio frequency cable adopts the silver-plated alumina as an internal conductor on the premise that the attenuation is low, the standing-wave ratio is small and the bending resistance performance is good. The price is cheap and the aluminum portion which is light replaces the heavy metal copper. As a result, the invention reduces the cost, reduces the self weight and reduces the pollution to the environment.

Description

technical field [0001] The invention relates to the field of radio frequency cables, and more specifically relates to an inner conductor of a radio frequency cable and a semi-flexible coaxial radio frequency cable. Background technique [0002] The semi-flexible coaxial RF cable has excellent properties such as wide operating temperature range, high operating frequency, low attenuation, small standing wave coefficient, and good shielding performance, as well as good bending properties. Therefore, it has been more and more widely used in transmission systems using radio frequency signals such as rockets, satellites, communications, navigation, electronic countermeasures, and measurement and control equipment. [0003] General semi-flexible coaxial RF cables have such figure 1 The structure shown includes coaxial inner conductor 1, insulator 2, outer conductor 3 and sheath 4 from inside to outside. For example, Chinese utility model patent CN2824321Y discloses a semi-flexible...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an inner conductor of a radio frequency cable and a semi-flexible coaxial radio frequency cable to solve the problem of high price, self-heavy and performance problems caused by the use of silver-plated copper in the semi-flexible coaxial radio frequency cable in the prior art. Defects that cause environmental pollution

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