A Dual-Band Beam-Switching Antenna Using Square Active Frequency Selective Surfaces

A dual-band beam-switching antenna using active square frequency selective surfaces (ASFSS) is presented. The proposed design consists of a dual-band monopole antenna as a source of electromagnetic waves (EM Waves), and two ASFSS. The ASFSS are used to convert the omnidirectional radiation pattern of the source into a directional one, forming a reconfigurable radiation pattern antenna. By applying different combinations of pin-diodes, a beam steering with 90^° angular beamwidth has been achieved at 2.45 GHz and 5.8GHz.