Reflection properties of infinite periodic arrays of rectangular conducting patches

Reflection properties of a planar infinite periodic array of rectangular, p erfectly conducting patches in free space are analyzed. The analysis is bas ed on modal formulations involving the Floquet theorem. Once the proper bou ndary conditions have been enforced, the resulting equations are solved usi ng Galerkin's method. Entire-domain sinusoidal basis functions are employed for this purpose. The analysis is applied through numerical computations i n which only the aspect ratios of the patches are varied. Consequently, the effects of changing aspect ratios can then be studied. The reflection prop erties considered in these computations are the variations of reflection co efficients with respect to parameters such as frequencies, TE incident angl es, number of basis functions, and number of Floquet node terms.