Perfect Control of Reflection Using Aperiodic Arrays

In this study, we present a novel method to design anomalous reflectors using arrays of loaded strips. To eliminate specular reflection and create the reflected wave propagating toward the desired direction, we assume two different sets of induced polarization currents flowing on the surface. Directly calculated loads in this case have real and imaginary parts. To obtain purely reactive loads we tune surface waves by optimizing the current distribution. During the talk we will show how additional loaded strips inserted within a λ/2-sized cell of the structure help obtaining the necessary freedom for optimization. We will demonstrate that perfect anomalous reflection can be realized. We will compare the obtained results with conventional reflectarrays and demonstrate a clear improvement.