Aerospace-used star quad communication cable and manufacturing method thereof

Abstract

The invention discloses an aerospace-used star quad communication cable and a manufacturing method thereof. The aerospace-used star quad communication cable comprises a cable core; and the cable core is sequentially coated with a wrapping layer, a shielding layer and a sheath. The aerospace-used star quad communication cable is characterized in that four core wires are paired and are subjected to star quad with a filling strip as a center to form the cable core; a multi-core inner conductor is wrapped with an insulated layer to manufacture each core wire; the insulated layer has a two-layer structure, the inner insulated layer is a microporous polytetrafluoroethylene thin film, and the outer insulated layer is a polytetrafluoroethylene green tape; the shielding layer has a silver-plated copper wire double-layer braided structure; and both the sheath and the filling strip are made of an ethylene-tetrafluoroethylene copolymer. The aerospace-used star quad communication cable provided by the invention can perform gigabit transmission, and has the advantages of high radiation resistance, high electromagnetic shielding performance, light weight, good flexibility, high temperature resistance, low delay, low attenuation, impact resistance and the like.

Description

technical field [0001] The invention relates to a communication cable, in particular to a star-quad communication cable for aerospace and a manufacturing method thereof, and belongs to the technical field of aerospace special wires and cables. Background technique [0002] In recent years, the combination of technologies such as mobile Internet, big data, and intelligent manufacturing is leading a new round of global industrial revolution. Their development forces the digital communication network as a transmission link to continuously move towards high-speed, high-frequency , high-capacity and multi-functional development, therefore, the transmission frequency and speed of communication cables have correspondingly higher requirements. The impact has spilled over to aerospace, too. At present, the MIL-STD-1553B data bus, which has been widely used in the past 30 years, is being replaced by other data buses due to its shortcomings such as a maximum frequency of only 2MHz. Th...

AI Technical Summary

Problems solved by technology

However, the optical fiber or communication cable used in the aerospace field must have the characteristics of resistance to vibration and shock, and the optical fiber cannot meet the above requirements due to its inherent defects such as brittleness and fragility.

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