Ultra-soft low-loss cable for narrow space

Abstract

The invention discloses an ultra-soft low-loss cable for a narrow space. The cable comprises an inner conductor, an insulating layer, a shielding layer and a combined sheath layer, wherein the inner conductor is formed by twisting a plurality of silver-plated copper alloy wires, and the insulating layer, the shielding layer and the combined sheath layer sequentially wrap the inner conductor from inside to outside. The combined sheath layer is formed by wrapping a microporous polytetrafluoroethylene tape and a polytetrafluoroethylene tape outside the outer shielding layer and sintering the microporous polytetrafluoroethylene tape and the polytetrafluoroethylene tape; the outer diameter of the cable is smaller than or equal to 2.4 mm, and the bending radius of the cable is smaller than 12 mm. The combined sheath layer adopts the microporous polytetrafluoroethylene tape and the polytetrafluoroethylene tape to wrap the combined sheath layer, so that the flexibility of a product can be effectively ensured; and meanwhile, the shielding layer is of a combined structure, so that the shielding performance and the anti-interference capability of the product are effectively ensured, and the phase stability and the attenuation stability in the dynamic bending process are ensured. The cable has the advantages of small outer diameter, light product weight and bending resistance, and solves the problems of poor waterproof performance and the like.

Description

technical field [0001] The invention relates to an ultra-flexible low-loss cable for narrow spaces. It is mainly used in the scene of narrow space and repeated dynamic bending, providing stable guarantee for the information transmission of the system. Background technique [0002] With the increasing amount of information processing and exchange in the internal system of electronic terminal equipment, the overall size of the equipment is smaller and the development trend is wider. For example, it is used in aerospace, aviation, ship, satellite, radar, communication and other fields. Specifically, such as national defense weapons and equipment, microwave communication systems, a new generation of mobile phones that can be bent at any angle, thin and light notebook computers, precision medical equipment and other small spaces and scenes of repeated dynamic bending. [0003] Since ordinary cables cannot be used in narrow spaces and scenes of repeated dynamic bending, higher r...

AI Technical Summary

Problems solved by technology

However, the outer diameter of the existing common coaxial cable is too large to be suitable for a narrow space, and its flexibility, bending resistance and environmental resistance are poor, so it cannot be used as a connecting cable in high-end miniature electronic equipment.

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