An Hybrid MoM-CG Method to Analyze Electromagnetic Scattering
A hybrid method based on the moment method(MoM)combined to the conjugate gradient(CG)algorithm is presented in this paper to analyze electromagnetic scattering.In fact,the most idea was to exploit the advantages of the CG algorithm,which is an iterative method,and to use it on a conjunction to the direct moment method,when the MoM fails to solve a matrix system due to ill conditioning.The aim was to compute the current density of an iris structure when illuminated by some active modes.It is observed that when using an excessive active modes number,the MoM matrix became ill conditioned and result is inaccurate,so the CG method is incorporated and used in place of matrix inversion in the MoM algorithm.This method is called the hybrid MoM-CG.Simulations results show the relevant impact of this method comparing to the classical moment method.
H.Belhadj S.Mili T.Aguili
SysCom Lab,National Engineering School of Tunis,Tunisia
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
434-437
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）