Design, Analysis, And Study of Circular Patch 2×2 MIMO Antenna for Wireless Communication Systems Mitigating Dual Interfering Bands by using T/Elliptical stub/slot

This manuscript reports a 2×2 MIMO antenna configuration designed for UWB-X band applications. RogersRTDuroid5880 is used as an RF substrate in this proposed design with a circular radiating-type patch placed orthogonally on the top plane and respective rectangular slotted ground on the bottom plane. Working of antenna also ensures filtering of interfering bands caused by Wireless Local Area Network and Downlink/Uplink frequency band which are obtained by adding inverted T-type stub and etching elliptical slot on radiating patch. Proposed MIMO antenna functionality is verified by plotting diversity performance which includes ECC, DG, TARC, and CCL. Also, the antenna shows good performance in the far-field region with a gainmax of 6dBi and a stable radiation pattern. Also, a 50Ω SMA connector is modeled in a simulator for better and accurate results.