Design and analysis of a compact planar electromagnetic bandgap (EBG) structure

A reduced size planar electromagnetic bandgap structure (EBG) is presented in this study. Method of suspended microstrip line is utilized to examine the transmission characteristics of the EBG and transmission phenomenon are analyzed. The stopband performances of the EBG are also invetigated by varying the dielectric constant and the thickness of the substrate. With the compact geometry a wide band of 17.56 GHz is achieved and the coupling reduction level is around −60 dB. All of the simulated results are presented and discussed. The results validate the effectiveness of the proposed configuration for wide range of applications to improve the system efficiency.