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Impedance boundary conditions in a hybrid fem/mom formulation

Hao Wang, Minjia Xu, Chen Wang, T. Hubing
2003 IEEE transactions on electromagnetic compatibility (Print)  
When numerically modeling structures with imperfect conductors or conductors coated with a dielectric material, impedance boundary conditions (IBCs) can substantially reduce the amount of computation required. This paper incorporates the IBC in the finite-element method (FEM) part of a FEM/method of moments (FEM/MoM) modeling code. Properties of the new formulation are investigated and the formulation is used to model three practical electromagnetic problems. Results are compared to either
more » ... ared to either measured data or other numerical results. The effect of the IBC on the condition number of hybrid FEM/MoM matrices is also discussed. Index Terms-Electromagnetic (EM) modeling, finite element method (FEM), method of moments (MoM).
doi:10.1109/temc.2003.810813 fatcat:5unmgqaor5gx5pdz7rlpml7ji4