Design and preliminary evaluation of a compact four-element terminal multiple-input multiple-output antenna for receiving antenna selection

A compact four-element multiple-input multiple-output (MIMO) antenna for receiving antenna selection at 2.3 GHz is designed and evaluated. Comparisons of MIMO systems employing antennas with different antenna selection schemes are presented. The system performances are evaluated and discussed in terms of channel capacity, average received signal-to-noise ratio and correlation coefficient between elements at the receiver. The impact of antenna orientations is also investigated. Based on the measured results, several subset antenna selection schemes are recommended in indoor application scenarios, which will contribute to compact terminal MIMO antenna design and optimisation complexity reduction.