This paper presents a numerical investigation for a
double screen frequency selective surface (FSS) with perfectly
conducting rectangular patch elements. The analysis uses a full
wave technique to obtain the scattering characteristics. The
analysis combines the immitance approach and the method of
moments to obtain the scattered fields and, consequently, the
scattering characteristics of the structure. For validation of the
analysis, numerical results are compared with measured and
numerical results presented by another authors. A good agreement
was obtained with experimental results.
