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Evaluation of indoor cable capacitances taking into account conductor proximity and dielectric heterogeneity effects

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1 Author(s)
Jose Brandao Faria ; Instituto Superior Tecnico, Lisbon

This paper is the second part of a two-paper set dealing with capacitances computations for indoor cable systems currently being employed for high-frequency signaling. In the first part, a harmonic expansion technique was used to accurately determine the capacitances of a three-conductor cable with an unbounded insulating medium. A generalization of the technique for n-conductor cable configurations is presented here, taking into account not only the proximity phenomena among conductors but also the dielectric medium heterogeneity effects arising from the finiteness of the cable insulating medium. Particular applications regarding typical triplex cables are presented. Numerical results concerning cable capacitances and cable wave-propagation parameters for odd-mode operation are analyzed and discussed

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Power Delivery, IEEE Transactions on  (Volume:21 ,  Issue: 4 )