Abstract
In this paper, a compact quad-port four-element multiple input multiple output (MIMO) antenna operating at 2.4 GHz is reported. The frequency bandwidth is obtained as 1.1–5.3 GHz and is suitable for WLAN/WiMAX and IoT applications. The overall dimension of the substrate is 30×70×1.6 mm3. The area covered by antenna elements and the coplanar ground plane are 30×20 mm2 and 30×50 mm2 respectively. To reduce mutual coupling between the elements and achieve good isolation, parasitic element is used at the back of the antenna. The maximum isolation obtained is −20 dB at 2GHz. The peak gain is obtained as 4.1 dB at operating frequency 2.4 GHz. The proposed compact and planar four element MIMO antenna is designed and simulated by using HFSS 14.
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