A Ground Plane of 5×5 Array AMC on a Single Antenna at 28 GHz

The analysis of the proposed single patch antenna without AMC and with AMC structures are discussed in this paper at a frequency of 28 GHz. The 5×5 array AMC structures are applied as a ground plane on the proposed antenna structure. Two kinds of array AMC are presented which namely Jerusalem AMC and proposed AMC structure. The performances are compared in terms of the bandwidth, realized gain and directivity. It is clearly shown that the performances is increased when the AMC is attached as a ground plane on the proposed antenna structure. The impedance bandwidth is increased by 98% and 85% when compared to the antenna without AMC structure. Other than that, the gain and directivity also increased up to 10% compared to the antenna without AMC structure. In addition, the sidelobe level size is slightly decreased compared to the antenna without AMC structures.