Comparison of two different simulation methods for the design of reflect-arrays

In this paper, Finite Element Method (FEM) in Ansoft HFSS is compared to summation of the Fourier Transform of the tangential reflected electric field on each element, for the simulation of the reflect-array antenna. Reflect-array antenna elements are square patches which are designed using Finite Element Method (FEM) in Ansoft HFSS, including the effect of incident angles.