Abstract: In this paper three types of Electromagnetic Band Gap (EBG) structure is presented. This paper analyze the parametric performance of different factors that influence band gap properties of EBG structures. Planer Electromagnetic Band Gap (EBG) structures are considered very promising in microwave engineering. It is found that EBG structures used to reduce interference, surface wave and mutual coupling. This paper includes three designs of EBG structures including Fractal shaped, Fork shaped and Spiral shaped. The array of theses EBG structures has been also analyzed to investigate the Band Gap Properties of these structures. Finally the comparison of band gap properties of all three EBG structures has been compared, discussed and concluded.