Patent ID: 6469680
Filing Date: 2002-10-22
Classification: H04B

Abstract:
Antenna apparatus for receiving uplink signals from mobile units in a cellular mobile radio communications system, said arrangement comprising:first antenna means for receiving an uplink signal at a first polarization; second antenna means for receiving the uplink signal at a second polarization different to said first polarization; third antenna means for receiving the uplink signal at a third polarization at a location spaced from said first antenna means by a distance sufficient for achieving space-diversity with respect to said first antenna means; fourth antenna means for receiving the uplink signal at a fourth polarization, different to said third polarization, at a location spaced from said second antenna means by a distance sufficient for achieving space-diversity with respect to said second antenna means; and means for combining the uplink signal received at each of said antenna means to generate a combined received signal, wherein said second antenna means is located closer to said first antenna means than to said third antenna means, and said fourth antenna means is located closer to said third antenna means than to said second antenna means.