Design of a compact miniaturized probe-fed patch antenna using electromagnetic bandgap structures

In this paper, a miniaturized probe-fed patch antenna backed by a mushroom-type EBG substrate is designed that achieves 66.83% area reduction. Different EBG unit cell sizes are simulated in order to determine the proper slow-wave wavelength that yields the smallest width and length for the patch without compromising its radiation characteristics. The performance of the designed miniaturized antenna is also compared with that of a conventional one. Finally, the coupling between two miniaturized antennas is evaluated in the Eand H-plane arrangements in order to observe the impact of miniaturization EBG on reducing the mutual coupling.