“…To improve isolation, the researcher has introduced a number of approaches, including using parasitic patches between antenna elements, using Defective Ground Structures (DGS), loading Electromagnetic Band Gaps (EBGs) and loading meta–surfaces as well as filters [ [9] , [10] , [11] ]. It is important to note that the applications of EBGs and meta-surfaces are not limited to isolation alone, but also include gain enhancement [ 12 , 13 ], phase correction [ 14 ], leaky-wave antennas [ 15 ], spatial filters [ 16 , 17 ], transmit arrays [ 18 , 19 ] and harmonic suppression [ 20 ]. In literature, there are many designs suggested to operate in lower frequency bands ranging from 1.5 to 18 GHz, which includes GPS, ISM, WLAN, WiMAX, 5G–Sub6GHz, C–Band, X–Band and S–Band [ [21] , [22] , [23] , [24] , [25] , [26] , [27] , [28] , [29] , [30] ].…”