An energy-selective surface loaded dual-polarized Fabry-Perot antenna structure

A dual-band Fabry-Perot (FP) antenna structure loaded with an energy selective surface (ESS) is proposed to adapt to a complex electromagnetic environment. A patch antenna is first designed and incorporated into an FP structure to increase performance. After that, the upper surface is designed to achieve the ESS function by loading Schottky diodes symmetrically around the center of the unit's surface structure. The performance of the whole structure is analyzed. The final design presents a working bandwidth in the 6.25-7.45GHz and is capable of energy selection to outcoming incident waves while the antenna's performance remains.