Low-loss high-speed cable and flat cable

Abstract

The invention discloses a low-loss high-speed cable and a flat cable. The low-loss high-speed cable comprises a wire core group, a first shielding layer, a second shielding layer and an outer coatinglayer; the first shielding layer wraps the wire core group; the second shielding layer wraps the first shielding layer; and the outer coating layer coats the second shielding layer; the wire core group comprises two inner conductors; two first fluorinated ethylene propylene insulating layers respectively cover the two inner conductors; and the two first fluorinated ethylene propylene insulating layers are covered with a second fluorinated ethylene propylene insulating layer which is formed by simultaneous extrusion molding. The wire rod of the low-loss high-speed cable of the invention is soft; the low-loss high-speed cable has high temperature resistance; the shielding layers of the low-loss high-speed cable can achieve full shielding; and the dielectric constant consistency of the low-loss high-speed cable is relatively high. With the low-loss high-speed cable adopted, signal attenuation loss can be reduced.

Description

technical field [0001] The invention relates to the technical field of communication wires, in particular to a low-loss high-speed cable and a flat cable. Background technique [0002] At present, electronic signal interface lines such as SFP, QSFP, CXP, and SAS are gradually being applied in communication equipment. SFP (Small Form-factor Pluggables) can be simply understood as an upgraded version of GBIC; the SFP module (half the size of the GBIC module, can configure more than double the number of ports on the same panel; because the SFP module is functionally different from The GBIC is basically the same, therefore, it is also called miniaturized GBIC (Mini-GBIC) by some switch manufacturers; the SFP module compresses the size and power consumption by placing the CDR and electrical dispersion compensation outside the module; it is used for telecommunications and Optical communication applications in data communication; SFP connects network equipment such as switches, ro...

AI Technical Summary

Problems solved by technology

[0003] However, the current SFP, QSFP, CXP, SAS and other interface cables still have the following problems: first, the insulating material of the core group is usually PE, the wire is relatively hard, and the high temperature resistance is not good; second, the shielding layer is difficult to align the core The group conducts 360-degree signal shielding without dead ends. In the future high-frequency, high-power signal transmiss

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