Diversity Gain Influenced by Polarization and Spatial Diversity Techniques in Ultrawideband
Journal article, 2015

This paper presents an experimental investigation of diversity gain influenced by polarization and spatial diversity techniques in ultrawideband (UWB) radio technology. To this aim, two different coplanar-fed UWB diversity antennas having the same size and employing identical monopoles were taken and both effective and apparent diversity gain were measured in a reverberation chamber. To extract the diversity gain, three commonly used approaches to combine diversity (i.e., selection, equal gain, and maximal ratio) have been considered. Results showed that >1 dB (similar to 26%) improvement in diversity gain is obtained over most of the considered band for polarization diversity case as compared with spatial case, showing the usefulness of polarization diversity for future UWB diversity applications.

reverberation chamber


antenna diversity

Diversity gain


UWB diversity antenna

reverberation chambers

indoor channel

communication channels

polarization and spatial


M. Koohestani

Swiss Federal Institute of Technology in Lausanne (EPFL)

Instituto Superior Tecnico

Ahmed Hussain

Chalmers, Signals and Systems, Communication, Antennas and Optical Networks

A. A. Moreira

Instituto Superior Tecnico

A. K. Skrivervik

Swiss Federal Institute of Technology in Lausanne (EPFL)

IEEE Access

2169-3536 (ISSN)

Vol. 3 281-286 7083698

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