A Multi-step Electromagnetic Topology Method to Compute the Coupling of External Electromagnetic Fields and Inner Wires of a Cavity through Apertures
In this paper,we introduce a multi-step electromagnetic topology(EMT)method to analyze interactions of external EM fields and inner wires of a cavity through apertures.The method involves three basic steps.The first step obtains an interaction sequence diagram to analyze the interaction processes for the electromagnetic coupling.The second step obtains different models to compute parameters of each junction in the diagram.For instance,based on the equivalence principle,we will use a semi-analytical approach based on the Modal Green Function and the method of moment(MoM)to compute an equivalent source for the aperture and employe Baum-Liu-Tesche(BLT)equations and Agrawals or Taylors formulations to calculate the coupling of field-to-wire.The last step calculates all junctions parameters.We use above models to compute each junctions parameters from one junction to the next according the interaction sequence diagram.By multi-step iteration the coupling computation is finished.Compared with the traditional EMT theory,the new method has a remarkable change that is not need to compute a scattering supermatrix.Numeric results confirm the validity of the method.
Guyan Ni Ying Li Jianshu Luo
Department of Mathematics and System Science,College of Science National University of Defense Technology,Changsha,Hunan 410073,China
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
1347-1351
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）