Reconfigurable radiation pattern antenna based on active frequency selective surfaces

In this paper, a prototype of active frequency selective surfaces (AFSS) screen based on the simple dipole strips has been proposed for a reconfigurable radiation pattern antenna. The results achieved in the measurements confirm the expected objectives for the proposed structure. However, it has been observed that the parasitic elements created by the active elements are indeed the main problem in attainting the desired properties. Because of this, the position of bandgap significantly changes which it leads to an in complete transparent screen in one state. However, measurement results demonstrate that using this idea it is possible to achieve a reconfigurable radiation pattern. Study on this subject is undergoing to improve the performance of the antenna.