Reconfigurable new unit-cell frequency selective surface for beam switching applications

In this paper, we present a novel Reconfigurable Frequency-Selective Surface (RFSS) design intended to improve the performance of filtering property. An FSS hybrid element is made reconfigurable through the use of a high frequency switch PIN diode. Our focus will be on the design of FSS structures whose transmission coefficient has acquired a dual-band of the desired frequencies. The RFSS hybrid element is composed of ten rings and a single dipole combined together to create two bands. The PIN-diode is also included in the structure to constitute a reconfigurable response of the electromagnetic window in two frequency bands of 2.3 GHz and 3.7 GHz. These dual bands are available for IEEE 802.16 WiMAX Applications. The impact of hybrid element, which is simulated by CST microwave studio software, has produced a reconfigurable transmission and reflection coefficient.