Design and Testing of a Novel MIMO Antenna for the 28 GHz Millimetre Wave Band

Abstract

This study focuses on designing and assessing a novel 5G-specific Multiple Input Multiple Output antenna (MIMO) functioning inside the millimeter wave band at 28 GHz. Two radiating components dominate the antenna. The system has two components: the primary patch and a parasite element. The primary patch is energized via a micro-strip line that has an inset feed, while the parasite element is energized by capacitive coupling. Optimal matching of impedance at 28 GHz is attained by refining the design parameters of the proposed antenna via extensive parametric analysis. The research investigates an operational frequency of surface current distributions. A 4-port effective MIMO system is established using the developed antenna. An analysis of the MIMO system's performances for ECC, DG, and CCL indicates its efficacy. Experimental assessments of the single-element antennas and the MIMO show outstanding matching of impedance throughout the frequency ranges, supported by the modeling results. The antenna has a gain of 7.8 dBi at 28 dBi