Branch correlation measurements in an indoor raleigh fading channel for polarization diversity using a dual polarized patch antenna

Spatial diversity techniques like polarization diversity, Space-Time Coding or Maximum Ratio Combining are advantageous if the received signals of the diversity branches are sufticiently uncorrelated. lndoor non-lineof-sight measurements were carried nut to study the cross-correlation between two received signals of orthogonal polarization using a dual linear polarized patch antenna. The antenna has been designed, built and measured at IRCTR. This paper gives the results of the channel measurements. It is concluded that received signals with orthogonal polarization in indoor Rayleigh fading channels have no significant envelope correlation.