Investigation of EBG array performance on decreasing the mutual coupling and improve shield factor

Abstract

In this paper EBG structures including parallel plates of EBGs are being used to reduce the mutual coupling between the two omni-directional antennas. Here, we have chosen the Discone antennas as omni directional antennas and comparisons between uniform and non-uniform structure with conventional array of antenna is presented, and compared with the fractal structure for designing ultra wide band structure. The multi-layer EBG structure have been designed and simulated based on EBG metamaterial characteristics. Our aim is to reduce coupling or reduction of S21 to have better coupling reduction and shielding effectiveness for applying the structure as an absorber or shield and shielding bandwidth in non uniform structure is increased up to 16GHz.