Abstract:A novel hybrid higher order Finite Difference Time Domain (FDTD) (2,4) and Modified Nodal Analysis (MNA) method for transient response of transmission line network is proposed. By constructing a hybrid single-port network model, the distributed parameter systems are separated from lumped circuits, so the higher-order FDTD (2,4) and MNA can be used to analysis of transmission line and port circuit transient response respectively. Different from former methods, the higher-order FDTD (2,4) can utilize coarser cell sizes for calculation of electrically long transmission lines because of the lower numerical dispersion errors. At the same time, direct using of circuit analysis method to solve the port circuits, the voltage and current wave processes of each node in the circuit can be obtained. Several sets of numerical examples validate the proposed method has higher accuracy and efficiency.
王为, 覃宇建, 刘培国, 周东明. 基于高阶时域有限差分法与改进节点分析法混合求解复杂传输线网络瞬态响应[J]. 电子与信息学报, 2012, 34(12): 2999-3005.
Wang Wei, Qin Yu-Jian, Liu Pei-Guo, Zhou Dong-Ming. The Solution of Transient Response for Complex Transmission Line Network by Hybrid Higher Order Finite Difference Time. , 2012, 34(12): 2999-3005.