An integrative analysis method of relatively good precision for finite frequency selective surfaces (FSSs) of radome

The existing methods use the ″infinite″ assumption to analyze FSS arrays and therefore, in our opinion, have shortcomings. So we propose an integrative analysis method that uses the hybrid Volume-Surface Integral Equation(VSIE) for finite FSSs. Section 1 of the full paper derives eqs. (4) and (5) for the scattering field of the finite FSS array. Section 2 establishes the VSIE for an arbitrarily shaped FSS through using the volume-surface equivalence principle. Section 3 uses the VSIE to model and calculate two specific shapes of FSSs; it then applies the multilevel fast multiple algorithm to speed up the solution process and the results, presented in Figs. 4 and 6, and their analysis show preliminarily that our integrative analysis method has relatively good precision.