一种分析双绞线串扰的时域方法

针对双绞线的特殊结构，提出了一种分析单线与双绞线时域串扰特性的简易方法。将单线和双绞线一起看作一组均匀多导体传输线按特定方式的级联，应用广义多端口网络概念，建立组间的电压控制方程，每一组多导体传输线采用时域有限差分方法进行求解，进而确定单线与双绞线的串扰电压时域波形。仿真结果与实验结果吻合较好，验证了该时域方法的正确性。

A Time-Domain Approach for Analyzing the Crosstalk of

A new simple method is presented in this paper for solving the crosstalk between a single wire and a twisted-wire pairabove the ground. The twisted pair is modeled as a cascade of loops consisting of uniform two-wire sections with abrupt interchangesof wire positions at the end of each loop. Then, with the concept of generalized multi-port network, the voltage control equationbetween the two wires is established. Finally, the time-domain results are obtained through the finite-difference time-domain (FDTD)method. It is found that the simulation results obtained by using the method proposed in this paper agree very well with theexperimental results.