Novel DGS shape for mutual coupling reduction

This paper presents a MIMO antenna system configuration. The paper is devoted to minimize the mutual coupling between antennas fed from different ports with the use of DGS structures. The paper discusses the system with and without introducing a novel DGS shape. The antennas are operating at 5GHz (Wi-Fi application). It contributes a mutual coupling reduction up to 14.4 dB. The designs are fabricated. It conducts a good agreement between the measured and simulated scattering coefficients. The antenna gain, pattern and current density are nearly unchanged for the different configurations.