Diversity Gain Influenced by Polarization and Spatial Diversity Techniques in Ultrawideband
Paper i proceeding, 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.

polarization and spatial

Diversity gain

reverberation chamber

indoor channel

UWB diversity antenna


antenna diversity


reverberation chambers

communication channels


M. Koohestani

Ecole Polytechnique Federale De Lausanne

Instituto Superior Tecnico

Ahmed Hussain

Chalmers, Signaler och system, Kommunikations- och antennsystem, Antennsystem

A. A. Moreira

Instituto Superior Tecnico

A. K. Skrivervik

Ecole Polytechnique Federale De Lausanne

IEEE Access

2169-3536 (ISSN)

Vol. 3 281-286





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