A compact dual-layer Electromagnetic Bandgap (EBG) structure

Several of compact Electromagnetic Bandgap (EBG) structure was proposed in the literature. In these structures, the size reduction was achieved by increasing either equivalent capacitance or equivalent inductance. In this paper, a compact dual-layer EBG structure was proposed by producing of both additional capacitance and parasitic capacitance. Therefore, the proposed EBG structure exhibit the cell size reduction of about 62% in comparison with the conventional mushroom-like EBG.