A Millimeter Wave 4X4 Circular Shaped MIMO Antenna with Half-moon and Elliptical Shaped Slots for 5G Networks

5G Technology has received a great importance due to its high data rate and low latency. This paper presents a 4x4 MIMO antenna with better ECC and isolation. Each element comprises of circular shaped microstrip antenna embedded with two slots of Halfmoon shaped and elliptical shaped backed by defected ground Plane. The radius of circular patch element is 1.97mm. The basic antenna structure is fed by a microstrip line and is printed on a 0.8mm thick Rogers/RT Duroid 5880 substrate, whose dielectric constant is 2.2. The prototype is fabricated and tested and it is found that the measured values agree with the predicted ones. The antenna operates at 28GHz with gain of 6.9dBi and ECC 0.00003. The antenna also provides better isolation which is less than -25dB at all the ports. Ansys HFSS software is used to design, model, and analyze the proposed antenna.