Pattern Reconfigurable Antenna using EBG Structures

Abstract

This paper proposed a configuration of electromagnetic band gap (EBG) in array structure that placed in between the micro strip antenna to create radiation pattern and polarization reconfigurable features. The pattern reconfigurable features occurs by the effect of reflection wave of the EBG structure while the polarization reconfigurable features occurs by connecting the edge of square patch using PIN diode. This paper only shows the simulated results using the CST Microwave Studios. By switching the PIN diode (in ON and OFF state) on the EBG structures, the beam pattern are steered from 0 to +14 degree with gain of 7.2 dBi at 2.42 GHz.