Cable shielding assembly and process of producing cable shielding assembly

Abstract

Cable shielding assemblies and processes of producing cable shielding assemblies are described. The cable shielding assemblies (101) include a conductor (107) and a conductive composite shield (103) extending around at least a portion of the conductor, the conductive composite shield having a non-conductive matrix and conductive particles within the non-conductive matrix. The conductive composite shield has a resistivity of less than 0.05 ohm*cm. The processes of producing cable shielding assembles include positioning the conductive composite shield. The positioning is at least partially around a conductor, at least partially around a dielectric material (109), at least partially surrounded by a jacket material (111), or a combination thereof.

Description

technical field [0001] The present invention relates to cable shield assemblies and methods of making such assemblies. More particularly, the present invention relates to cable shield assemblies having conductive composite shields. Background technique [0002] In general, the cable shielding material can be metallic or include ferrite. Metal shields come in the form of braids, tapes, tubes, spirals, braided wire mesh with plastic covers, laminates, plated yarns and fabrics, and many more arrangements. Such shields provide shielding for low frequency applications, but they have several disadvantages. For example, braids have reduced shielding effectiveness in the high frequency range due to low optical coverage. Metal shields can be heavy and / or require expensive and complex plating processes, as well as braiding and / or tape wrapping processes. Ferrite beads are used for high frequency noise suppression, but they are limited by the frequency range allowed by the particul...

AI Technical Summary

Problems solved by technology

Such shields provide shielding for low frequency applications, but they have several disadvantages

For example, braids have reduced shielding effectiveness in the high frequency range due to low optical coverage

Metal shrouds can be heavy and / or require expensive and complex plating processes, as well as braiding and / or tape wrapping

Ferrite beads are used for high frequency noise suppression, but they are limited by the frequency range allowed by the particular type of ferrite and are not suitable for high frequency signal equipment

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