Millimeter-Wave Compact and High-Performance Two-Dimensional Grid Array for 5G Applications

This paper presents the design and evaluation of a high gain, wideband, compact antenna grid array at millimeter-wave (mm-wave) band for the 5th generation (5G) applications. The designed microstrip-fed antenna array offers an operating bandwidth of 5.5 GHz in the range of 27.5-33 GHz. The realized gain in the proposed range of operation is above 9 dBi with a peak gain of 11.34 dBi at 32.5 GHz. The numerically calculated efficiency is above 80% in the whole band of 5.5 GHz. The proposed antenna array is a potential candidate for the 5G cellular handheld devices as well as in the indoor base-stations.