High Isolation Low Profile MIMO Antenna for 5G Applications
Journal Title: International Journal of Innovations in Science and Technology - Year 2025, Vol 7, Issue 2
Abstract
This articlefocuses on the multi-input multi-output (MIMO)antenna with smaller dimensionsand improved isolation between the ports which results in goodperformanceand is suitable for modern wireless communication systems,especially USB dongle and 5G mobile applications.Two mainproblemswith the conventionalantennas are (i)Largeheight between the top to ground plate and (ii)Smaller isolation between the ports.These two problems are carefully addressedin the proposed design.The height in the proposed antenna is minimized up to 4mm between the topand to ground plate.Furtherachieved isolation is more than -18dB by introducing a novel type of periodic slots in the ground plate of the antenna. Theantenna structure consists of a ground plate and two top plates, each with defined dimensions. The parameters are optimized using software for the best performance of the antennato ensure efficient signal transmission and reception. The proposed antenna aims to explore the impact ofdimension parameters like impedance matching and fractional bandwidth and isolation between the ports. The antenna resonates for 4.5GHz to 5.75GHz frequency bandwidth. The return loss for impedance bandwidth is below -20dB. The antenna is simulated on software andfabricated on substrate FR4. The simulated and measured results are compared which indicates that this antenna with high isolation and good impedance bandwidth is a moresuitable candidate for 5G mobile applications.Compared to the conventional same-class antenna, the proposed antenna has good performance with minimized dimensions.
Authors and Affiliations
Muhammad Nasir, Talha Baber, Muhammad Abdullah, Muhammad Husnain Aslam
Keywords
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