Abstract

This paper presents two planar UWB MIMO antenna arrays designed from a compact novel CPW fed UWB antenna. The first MIMO antenna is made with lateral placement of the two proposed UWB antennas and second MIMO antenna is made with orthogonal placement of two UWB antennas and both MIMO antennas covers the entire UWB frequency band. The first MIMO antenna with lateral placement operates in frequency range from 2.7 GHz to 12.5 GHz and second MIMO antenna with orthogonal placement of antennas operates in 2.8 GHz to 13.1 GHz band. The designed MIMO antennas have volume of 54 × 30 × 1.6 mm3 for lateral placement and 61 × 30 × 1.6 mm3 for orthogonal placement. Both antennas have satisfactory performance in terms gain, radiation pattern, return loss, voltage standing wave ratio, envelope correlation coefficient and diversity gain for UWB MIMO application.

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