Design of Dual-element UWB MIMO Antenna

This paper presents a dual-element multiple-input multiple-output (MIMO) antenna system designed for ultra-wideband (UWB) applications. The dimension of the antenna is 46×35×1.6 mm ³ and it employs a defect ground structure (DGS) and parasitic elements for element isolation. It operates within the frequency range of 3 GHz to 18 GHz, providing 15 dB isolation across the entire wide band. The envelope correlation coefficient (ECC) is below 0.01, indicating strong diversity performance with a diversity gain (DG) exceeding 9.95. The antenna shows potential for applications in emerging fields such as UWB communication systems and the 5G networks.