A Circular Patch with Rectangular-Slotted Ground Super-Wideband Two-Port MIMO Antenna for Multiple Wireless Applications

This research article analyses a super-wideband monopole two-port MIMO antenna which radiates electromagnetic energy efficiently. The proposed antenna is designed as a single-port on dielectric material occupying the space of 10×12 mm
²
with a circular patch printed on the top plane of the substrate and rectangular-slotted ground on the opposite side of the substrate which has a dielectric constant value of 2.20 with thickness 0.254mm. This antenna offers a bandwidth of 8.51GHz-51.74GHz with two deep resonances at 10.40GHz and 40.40GHz. This antenna also offers an average peak realized gain and directivity of 5.09dBi and 6.20dBi. The two-port MIMO version of the single-port is transformed by placing two identical-circular patches adjacent to each other with an edge-to-edge spacing of 7.50mm to maintain the bandwidth of 8.00GHz-50.0GHz. The inter-spacing achieves isolation of more than 14.80dB with average diversity parameter Envelope Correlation Coefficient42.0GHz=0.011, Diversity Gain42.0GHz=9.764dB, Total Active Reflection Coeffieicnt42.0GHz=-38.0dB, and Channel Capacity Loss42.0GHz=0.102b/s/Hz in the 40GHz bandwidth. The proposed MIMO antenna is a probable candidate for multiple wireless applications including X-Band RADAR, Ku-Band Satellite System, and millimeter-Wave 5G Technology bands FR2 ranging between 24.0GHz-40.0GHz and can be deployed in mobile wireless infrastructure in the electromagnetic Wave environment.