Wideband MIMO Antenna in the Shape of a Hand Grip

Abstract

The primary design hurdles in creating an antenna for contemporary wireless communication were mutual coupling and size reduction. This paper suggests an ultra-wideband (UWB) antenna with four elements, Multiple Input Multiple Output (MIMO). Each element contains two ports with dual-polarized patches to boost capacity, lessen the effects of reciprocal coupling, and maintain the right size. A semi-oval geometric design with slots has been placed above the patch of the intended antenna to decrease the effects of mutual coupling. With the help of four integrated elements, eight integrated ports, and a Rogers insulating layer, the CST STUDIO 2019 program simulates a single antenna element and a MIMO antenna in a space of (60.48 × 60.48) mm2. The MIMO antenna bandwidth is 2 GHz, the operational frequency is 8.837 GHz while the return loss is -37 dB in the resonance (7.69-9.71 GHz). The MIMO antennas' diversity gains (DG) were around 10, their gain was appropriate (about 8 dB), and their envelope correlation coefficient (ECC) was under 0.006.