复杂传输线网络电磁脉冲响应的拓扑分析研究  

Terminal voltage analysis of complex transmission line network based on electromagnetic topology theory

作　　者：张祥[1] 石立华[1] 周颖慧[1] 张琦[1] 

机构地区：[1]解放军理工大学电磁环境效应与光电工程国家级重点实验室,江苏南京210007

出　　处：《电波科学学报》2013年第2期341-347,共7页Chinese Journal of Radio Science

基　　金：国家自然科学基金(51077133);2012年解放军理工大学工程兵工程学院青年基金

摘　　要：应用电磁拓扑方法研究了复杂传输线网络的电磁脉冲响应问题.以建筑物内部电气布线为例,采用基于节点和管道的空间扩展拓扑模型对所求问题进行拓扑建模,构造了考虑辐射和传导耦合效应的混合拓扑网络.拓扑模型能够通过传输矩阵、散射矩阵和激励源项,统一地描述辐射耦合和传导耦合的过程,进而建立(Baum-Liu-Tesche)方程,并通过对方程的求解获得不同节点的终端感应电压响应.采用该方法,对建筑物室内终端的电磁脉冲响应进行了分析,并讨论了电压波形随终端负载的变化情况.Based on the electromagnetic topology theory,the electromagnetic response of a complicated transmission line network is analyzed.Power network in a building is taken as an example and a topological model is established.The analyzed system is decomposed into nodes and tubes according to the electromagnetic topology theory,and a hybrid topological network considering the effects of radiation coupling and conductive coupling is constructed.The two coupling mechanisms can both be described by transmission matrix,scattering matrix and source matrix in the topological model.Using these matrices the Baum-Liu-Tesche（BLT） equation is got and the terminal responses are calculated.Finally,the relationship between the voltage waveform and the terminal load is discussed.

关 键 词：电磁拓扑 BLT方程 特征矩阵 

分 类 号：TN811[电子电信—信息与通信工程]