Analysis of Electromagnetic Wave Scattering by an Electrically Large Metallic Grating Using Wavelet-Based Algebratic Multigrid Preconditioned CG Method

R. S. Chen, D. G. Fang, K. F. Tsang, E. K. N. Yung
2001 Electromagnetic Waves  
An effective wavelet based multigrid preconditioned conjugate gradient method is developed to solve electromagnetic large matrix problem for millimeter wave scattering application. By using wavelet transformation we restrict the large matrix equation to a relative smaller matrix and which can be solved rapidly. The solution is prolonged as the new improvement for the conjugate gradient (CG) method. Numerical result shows that our developed wavelet based multigrid preconditioned CG method can
more » ... ed CG method can reach large improvement of computational complexity. Due to the automaticity of wavelet transformation, this method is potential to be a block box solver without physical background. 90 Chen et al. Results and Discussions 4. Conclusions References
doi:10.2528/pier00060101 fatcat:72av5f65rbc6llvwypvnhl5jde