Abstract
A method of improving the diversity measure and capacity of single-polarized antenna array in non-isotropic multipath environments by loading dielectric substrate array is proposed. The dielectric substrate array, which is made of relatively higher wave impedance dielectric substrate periodically, is placed on top of the antenna array to enrich the wave scattering. By introducing different scatter properties when the antenna elements are excited, the correlations between the adjacent elements in the antenna array are decreased, and the array diversity measure and capacity are improved. Through applying this method to $4 \times 8$ antenna array, the potential of this method for massive MIMO array is demonstrated.
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