Symmetric combination structure of miniature parallel high-speed transmission cable

Abstract

The invention belongs to the technical field of a cable tool, in particular to a symmetric combination structure of a miniature parallel high-speed transmission cable, and discloses the combination structure of the miniature parallel high-speed transmission cable. The combination structure of the miniature parallel high-speed transmission cable comprises a plurality of pairs of symmetric axial core wires, each pair of symmetric axial core wires comprises two central wires and a ground line, fluoroplastic is extruded outside each central wire, the two central wires and the ground line are arranged in parallel to form a wire pair, and a single shielding layer is formed outside the wire pair through longitudinal wrapping of a metal foil and lapping of a polyester tape. The symmetric combination structure has the advantages that the purchase cost and the usage cost are reduced; moreover, a large amount of such products are used in an ordinary data center, the symmetric combination structure is low in cost and is more environment-friendly, and the transmission efficiency is improved and reaches over 25GHz; the wire is used in a more severe environment and in a small-bending radius occasion; and the transmission stability is improved.

Description

technical field [0001] The invention belongs to the technical field of cable appliances, in particular to a symmetrical combination structure of miniature parallel high-speed transmission cables. Background technique [0002] The cables used at present are generally symmetrical twisted pair cables, and the structure of the symmetrical twisted pair cable is generally 8 core wires, and every 2 core wires are symmetrically twisted to form 4 sets of wire pairs. The symmetrical twisted pair cable is limited by its own structure, and the theoretical maximum transmission frequency is 1.2GHz. From the actual point of view of product manufacturing, the current transmission frequency of the super seven symmetrical twisted pair cable is 1GHz, and the construction of the symmetrical twisted pair cable is easy. Deformation occurs under the action of external force, which causes the line pair to be out of sync when transmitting high-frequency signals, resulting in loss and delay of signal...

AI Technical Summary

Problems solved by technology

The symmetrical twisted pair cable is limited by its own structure, and the theoretical maximum transmission frequency is 1.2GHz. From the actual point of view of product manufacturing, the current transmission frequency of the super seven symmetrical twisted pair cable is 1GHz, and the construction of the symmetrical twisted pair cable is easy. Deformation due to external force, which leads to asynchronous phenomenon of wire pairs when transmitting high-frequency signals, resulting in loss and delay of signal transmission and other problems

In order to achieve the transmission frequency of 1GHz, the cable with this structure must meet the requirements of larger diameter conductors, resulting in a large outer diameter of the finished product, which is extremely inconvenient to use in some small space occasions.

[0003] The development of parallel symmetrical axis cables started in recent years. So far, its main product structure is 1 pair or 2 pairs, and the outer diameter of the conductor specification is large, but 1 pair or 2 pairs of parallel symmetrical axis cables are mainly The problem is that there are few transmission channels and the transmission frequency is not high, generally below 6GHz, it is difficult to meet multi-link data transmission and the bending radius is also greatly restricted

In addition, gas is injected into the PE insulation of skin foam skin, and the hardness of PE material is low. In the subsequent process, it is easy to cause deformation, and the consistency of product structure and size is not good, and the performance is not good.

Images