Acceleration of Finite Periodic Structures Analysis through Matrix Compression Techniques

Slotting the impedance matrix to perform the matrix-vector product through the use of FFT, procedures named slotFFT techniques, is an efficient way to accelerate the solution of electromagnetic analysis of finite periodic structures through the SIE-MoM framework. This work presents the combination of a slotFFT technique with two different matrix compression methods, one based on full domain power-decoupled macrobasis, and other based on skeletons to increase the achieved acceleration, showing the versatility of the proposed slotFFT algorithm to be integrated with different frameworks.