多导体传输线瞬态响应研究

发布时间：2018-10-14 08:53

【摘要】：针对多导体传输线瞬态响应的无源性问题,提出了基于集总等效源模型的多导体传输线瞬态响应模型.从外场激励下的多导体传输线的频域电报方程解出发,将外场在传输线上激励的分布电压源和电流源与传输线指数矩阵解耦,建立了集总等效电压源和电流源模型.为避免复杂的傅里叶反变换及卷积运算,推导了集总源模型的时域递推方程.在此基础上,采用时域有限差分法建立了端接线性负载、非线性负载和外场激励下的不等长多导体传输线瞬态响应离散递推方程.通过对无损传输线的仿真对比,验证了方法的有效性.最后,对端接线性负载、非线性负载和外场激励下的不等长多导体传输线瞬态响应进行了试验和仿真分析.
[Abstract]:The transient response model of multi-conductor transmission lines based on lumped equivalent source model is proposed to solve the passive problem of transient response of multi-conductor transmission lines. Starting from the solution of the frequency domain telegram equation of the multi-conductor transmission line excited by the external field, the distributed voltage source and current source excited by the external field on the transmission line are decoupled from the transmission line exponential matrix, and the lumped equivalent voltage source and current source model are established. In order to avoid complex Fourier inverse transform and convolution operation, the time domain recursive equation of lumped source model is derived. On this basis, the discrete recursive equations of transient response of multiconductor transmission lines with unequal length under the excitation of end connection load, nonlinear load and external field are established by using the finite difference time domain (FDTD) method. The effectiveness of the method is verified by simulation and comparison of lossless transmission lines. Finally, the transient responses of multi-conductor transmission lines with unequal length under the excitation of end connection load, nonlinear load and external field are tested and simulated.
【作者单位】：中国空间技术研究院总体部;工业和信息化部软件与集成电路促进中心;
【分类号】：TN811

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