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Characterization of Polarization Diversity at the Mobile

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4 Author(s)

Two new models used to characterize polarization diversity at the mobile are presented and discussed. The first model is built upon existing theoretical models at a base station to demonstrate how those principles apply to the mobile fading environment. Due to limitations of antennas at the mobile, this extended model, although relevant, is not sufficient to characterize polarization diversity of the antennas; therefore, this paper moves on to show how a new approach to polarization diversity at the mobile exists as an inherent feature within an angular diversity system. Results show that, for two polarizations in a fading environment, the best overall output occurs with a plusmn45deg element configuration, although the diversity combiner itself has optimum performance with a plusmn67.5deg configuration due to lower correlation at the input. The second model is also used to demonstrate how differently polarized dipoles are using polarization diversity inherent within an angular diversity system.

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Vehicular Technology, IEEE Transactions on  (Volume:56 ,  Issue: 5 )