Channel Capacity of a Handset MIMO Antenna Influenced by the Effects of 3D Angular Spectrum, Polarization, and Operator

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Executive Summary

So far, effects of MIMO on the enhancement of channel capacity have been investigated principally in the i.i.d. (independent and identically distributed) channel. However, for a handset MIMO, some subjects have to be considered, such as: 3D-angular spectrum for incident waves, polarization of both theta and phi components, i.e. XPR, Electromagnetic effects of a human operator. This can clarify the relationship between the handset MIMO capacity, and radiation and incident wave properties. There are some difficulties of handset MIMO antennas. The number of antenna elements is limited because of the small physical size of the handset, which leads to narrow antenna spacing.

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