Abstract: In this paper reconfigurable micro strip antenna using electromagnetic band gap structures [EBG] is presented. In this design, EBG structures are done by making a hole on substrate in order to tune for multiple frequencies for four different heights of substrate. The antenna design makes use of micro strip feeding technique. EBG concept is taken into consideration to achieve reconfigurabality. For the antenna design a box shaped EBG structure has been considered and the performance of the designed antenna is analyzed. For different heights of substrate, the performance of antenna is analyzed. The result shows for a substrate height of 1.6 mm at X band frequencies the VSWR is close to one.

Keywords: Microstrip patch antenna, Reconfigurablity, Electromagnetic Band Gap, FR4_epoxy and HFSS.