Pattern-reconfigurable antenna using cantilever based-AFSS

A pattern reconfigurable antenna using an innovative active frequency selective surface is presented. The antenna system comprises of a simple dipole and a cantilever based flat active frequency selective surface screen. The electrostatically actuated cantilever arms are employed, for switching the frequency selective surface between the transparent and opaque modes. Simulation results demonstrate that the proposed structure became opaque when the cantilever arms are at the DOWN state, which results in a directional radiation pattern.