Title :
Efficient modeling of electromagnetic scattering from general body with cavity structure using preconditioned formulation of FE-BI equations with DDM and RCM algorithm
Author_Institution :
Temasek Labs., Nat. Univ. of Singapore, Singapore, Singapore
Abstract :
This paper will discuss how to combine the preconditioned FE-BI-DDM matrix equation with the help of the reverse Cuthill-McKee (RCM) algorithm, ILU decomposition, and fast algorithm for matrix-vector multiplication in GMRES solver into a powerful method for modeling and understanding the scattering characteristics of cavity within a general body. Numerical results obtained using the proposed method for several newly proposed cavity structures are great help in understanding their underlying physics of scattering behavior.
Keywords :
boundary integral equations; electromagnetic wave scattering; finite element analysis; matrix multiplication; DDM algorithm; FE-BI equations; GMRES solver; ILU decomposition; RCM algorithm; cavity structure; domain decomposition method; electromagnetic scattering; finite element-boundary integral methods; matrix-vector multiplication; preconditioned FE-BI-DDM matrix equation; preconditioned formulation; reverse Cuthill-McKee algorithm; Antennas and propagation; Backscatter; Cavity resonators; Equations; Finite element methods; Mathematical model; Scattering;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2010 IEEE
Conference_Location :
Toronto, ON
Print_ISBN :
978-1-4244-4967-5
DOI :
10.1109/APS.2010.5561751
