Authors: Mrs. M. Deepthi, Jannu Sahithi, P. Vikhyath Reddy, Polapally Srinidhi
Abstract: In the era of wireless communication, the demand for compact and high-performance antenna with ultra-wideband capabilities has been increased, particularly in 5G and Internet of Things (IoT) applications. This paper presents the design, simulation, and comparative analysis of novel Multiple Input Multiple Output (MIMO) antenna structures- Circular, Hexagonal and Hybrid of both patch configurations. The primary objective is to develop a compact MIMO antenna with low mutual coupling, wide bandwidth, improved gain and directivity. Advanced hybrid techniques and ground plane modifications were employed to improve the performance. Simulation and optimization were conducted using Ansys HFSS, with a focus on key performance metrices such as S-parameters, radiation pattern and gain. The hybrid MIMO antenna structure demonstrated superior results in terms of isolation, directivity, and bandwidth offering a promising solution for UWB applications in future wireless technologies.