A 5G MIMO Antenna Array With Fractal Ground For Smartphones

Fifth-generation technology commonly called 5G is considered to be pivotal for wireless communication systems. The existing wireless standard 5G being the successor to 4G provides high data rates. High gain and bandwidth are essential for modern-day smartphones whereby the users can watch live streaming HD videos without any interruption. The main objective of this paper is to design a multi-band multiple-input multiple-output (MIMO) antenna system for modern day smartphones. The proposed antenna is designed using a circular microstrip patch. Microstrip patch antennas are known for their versatile nature as they can be designed in any geometry. Moreover, they are lightweight and can also be easily integrated with other microwave circuits. To make the antenna resonate at multiple frequencies, Sierpinski carpet fractal geometry is introduced into the ground structure. It consists of Rogers RT 5880 as substrate with a dielectric constant of 3.14 and loss tangent 0.005. The thickness of the substrate chosen is 0.05 mm.