A Two-element MIMO Antenna with a Small Footprint for 5G Connectivity

Abstract

In this work, researchers constructed a MIMO antenna with circular polarization and reduced mutual coupling between antenna sections, which they anticipate would be useful in future 5G communications. A microstrip feed line and a ground construction with asymmetrical cross slots make up a single antenna component. The proposed 2-port MIMO arrangement is obtained by rotating the single unit around the x-axis and mirroring it. A neutralization line is included in the ground plan between the MIMO units to obtain the best possible isolation. A substrate with dimensions of 50×100 mm2 is made of FR-4 epoxy laminate. At 3.25 GHz, there is an isolation of 22 dB, (ECC < 0.001), and (DG > 9.9 dB). The simulated findings are found in consonance with the measured results.