Transactions of Nanjing University of Aeronautics & Astronautics
Fast SSED-MoM/FEM Analysis for Electromagnetic Scattering of Large Scale Periodic Dielectric Structures
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Abstract:
A hybrid method combining simplified sub-entire domain basis function method of moment with finite element method (SSED-MoM/FEM) is accelerated for electromagnetic (EM) scattering analysis of large-scale periodic structures. The unknowns are reduced sharply with non-uniform mesh in FEM. The computational complexity of the hybrid method is dramatically declined by applying conjugate gradient-fast Fourier transform (CG-FFT) to the integral equations of both electric field and magnetic field. The efficiency is further improved by using OpenMP technique. Numerical results demonstrate that the SSED-MoM/FEM method can be accelerated for more than three thousand times with large-scale periodic structures.
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Project Supported:
Supported by the Aeronautical Science Foundation of China (20121852031).
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