Abstract
A four-element antenna array for a USB dongle multiple-input multiple-output (MIMO) antenna working in dual 2.4/5.2 GHz frequency bands is presented. For achieving reasonably low mutual coupling and good return loss characteristics of the antenna array, the positions of the antenna element are optimised within a compact low cost FR4 PCB board with dimensions of 25 × 50 × 0.8mm3. The array is evaluated as a MIMO antennas is presented, with analysis of the mutual coupling, correlation coefficient, total active reflection coefficient (TARC) and capacity loss. The proposed antenna meets the requirements for practical application within a wireless communications system.
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