Fast MBF analysis of printed FSS structures

A fast analysis method based on Contour-FFT macro basis function approach is proposed to compute the field reflected from the printed FSS structures. We demonstrate that, with the help of the Contour-FFT approach, the substrate related interactions can be evaluated with N log₂ N complexity with proper consideration of the mutual coupling effect. An excellent comparison is reported between the results obtained with the fast method and with the reference solutions.