Abstract
ABSTRACT In this paper, a reduced mutual coupling dual-band multiple-input-multiple-output (MIMO) antenna is reported. A thin rectangular slot is incorporated into an unlicensed 5.2 GHz band rectangular patch antenna (RPA) to excite another industrial, scientific and medical (ISM) 2.4 GHz band. In the MIMO configuration, antennas are closely placed at a distance of and the mutual coupling between antenna elements is suppressed by incorporating a dual-band electronics-bandgap (EBG) structure. A mushroom kind of EBG arrangement with two different square-shaped plates on the top and the bottom of the EBG is done to exhibit dual-band rejection characteristics. MIMO communication parameters, envelope correlation coefficient (ECC), diversity gain (DG), and multiplexing efficiency () are calculated exhibiting excellent performance of the proposed antenna. Prototype of the antenna is fabricated and good agreement is found amongst simulation and measured results.
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