An Analytical Method of Minimizing the Crosstalk of Curved Cable and Determining the Optimal Wiring

摘要

Crosstalk is an easily occurred electromagnetic interference between adjacent cables. Previous research on crosstalk mainly focused on straight cables, and seldom works are reported for bended cables which happens most often in applications. Thus, we propose an analytic method to minimize the crosstalk between curved cables and determine the optimal wiring rules within a specified frequency range. The procedure of the proposed method can be described as the following steps: Firstly, the theoretical crosstalk model of curved cables is deduced and verified by numerical simulation. Then, an "sigma area" is defined as the evaluation parameter of crosstalk effects, which is devoted to obtaining the law of S-sigma with the bending degree. On this basis, an optimal wiring is presented and a physical explanation through the coupling mechanism is given. Finally, an experiment is carried out to further validate the proposed method.