Abstract

An investigation into the shielding effectiveness of triaxial cables employing wire shields, with optimum braid constructions, is described. Several triaxial configurations with different braid designs, for inner and outer cables, were simulated. It is shown that crosstalk performances of the triaxial cables are affected by both absolute values and polarities of the surface transfer impedances of the shields. The effect of electric field coupling, on the overall crosstalk within the triaxial system, has also been studied in both frequency and time domains. For triaxial cables with shorted braids, the effects of electric field coupling are limited to high frequencies and their effects at low frequencies are small. >

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