IMPLEMENTATION OF FAST ITERATIVE SOLVER USING ADAPTIVE CROSS APPROXIMATION TECHNIQUE

The Multilevel Adaptive cross Approximation (MLACA), an algorithm to solve MoM electromagnetic problems with computational cost O(N2) and a storage scaling with O(NlogN), is presented here and for the first time applied to a whole electromagnetic problem and not only to the interaction between blocks whose containing spheres do not intersect each other. For compressing an off-diagonal submatrix of the method of moments (MoM) impedance matrix with a binary tree, the L-level MLACA includes L + 1 steps, and each step includes 2L ACA-SVD decompositions