Integrating Slots and Defective Ground Structures to Achieve 2×2 MIMO Antennas Applicable to 5 G and WiFi 6E

This study proposes a 2×2 MIMO antenna suitable for 5 G and Wi Fi 6 E. The antenna design combines slots and defective ground structures (DGS) to cover the frequency range of
$2.4 - 9\text{GHz}$
, greatly increasing the antenna's application bandwidth. The radiation efficiency of the antenna in this working frequency band is always maintained above
$150{{\% }}$
and its gain effect is also very stable. The above results confirm that the application scope of this antenna design is quite broad and can be extended to other fields.