Cable, active cable and communication system

By optimizing the center-to-center distance and metal layer spacing of multi-core cables and designing racetrack-shaped or elliptical dielectric layers, the problems of heavy cable weight and large space occupation in large-scale networks are solved, enabling multi-channel signal transmission and reducing the number of cables with smaller wire diameters.

WO2026001944A1 Publication Date: 2026-01-02HUAWEI TECH CO LTD
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Patent Information

Application Number
PCT/CN2025/102987
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-06-27
Filing Date
2025-06-24
Publication Date
2026-01-02

AI Technical Summary

Technical Problem

In large-scale networking, the increased number of cables leads to greater weight and space occupation, which can easily damage equipment and block ventilation channels. Existing cables are difficult to use with smaller wire diameters to achieve multi-channel signal transmission.

Method used

Design a multi-core cable including a dielectric layer and multiple battery cores. By optimizing the center distance S of the battery cores and the spacing w between the inner walls of the metal layer, the cable diameter is made smaller than the diameter of the bundled coaxial cable. The dielectric layer and metal layer are shared to reduce weight and make the cable thinner. The shape of the dielectric layer is racetrack-shaped or elliptical to optimize signal transmission.

Benefits of technology

It enables the transmission of multiple signals with smaller wire diameters, reduces weight and cable thickness, reduces signal crosstalk, reduces the number of battery cells, and reduces insertion loss. It is suitable for interconnection of active and passive cables.

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Abstract

The present application belongs to the technical field of communications. Provided are a cable, an active cable and a communication system. The cable comprises a dielectric layer, a first metal layer and at least two cores, the first metal layer covering the dielectric layer, and the at least two cores being located in the dielectric layer. The distance S between the centers of any two cores satisfies 1.97d≤S≤3.60d, and the distance w between the center of any core and the inner wall of the first metal layer satisfies 1.15d≤w≤2.10d, d being the diameter of the core and being determined according to the size of the cable. The present application enables cables to achieve the transmission of multiple signals under small cable diameters, thereby facilitating the weight reduction and thinning of cables.
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