Title :
Polarization diversity in mobile communications
Author :
Vaughan, Rodney G.
Author_Institution :
Dept. of Sci. & Ind. Res., Lower Hutt, New Zealand
fDate :
8/1/1990 12:00:00 AM
Abstract :
Signals in the vertical and horizontal polarizations at the base station have been measured by transmitting from a principally vertically polarized mobile. There was no direct line-of-sight path between the mobile and base. The envelopes were uncorrelated and the means differed by 7 dB and 12 dB when the mobile was in urban and suburban areas, respectively. The discussion of the results includes theoretical curves showing the relationship between the envelope correction coefficient and the mean levels difference of Rayleigh distributed signals in orthogonal linear polarizations at the base station. The variable parameters are the rotation angle of the base station antenna and the crosspolar discrimination of the incident fields
Keywords :
diversity reception; electric variables measurement; electromagnetic wave polarisation; fading; mobile communication systems; Rayleigh distributed signals; base station antenna; crosspolar discrimination; envelope correction coefficient; fading; incident fields; mean levels difference; mobile communications; orthogonal linear polarizations; polarization diversity; rotation angle; vertically polarized mobile; Antenna measurements; Arm; Base stations; Dipole antennas; Directive antennas; Mobile antennas; Mobile communication; Polarization; Receiving antennas; Space stations;
Journal_Title :
Vehicular Technology, IEEE Transactions on
