Millimeter wave propagation in arid land-a field study in Riyadh
Ali, A.A.; Alhaider, M.A.
Antennas and Propagation, IEEE Transactions on
Volume 40, Issue 5, May 1992 Page(s):492 - 499
Digital Object Identifier 10.1109/8.142623
Summary:A field study on wave propagation has been actively running for
four years in Riyadh, Saudi Arabia. The study involves the operation and
monitoring of two links at a frequency of 40 GHz, and an infrared link
at 0.88-μm wavelength. A meteorological station is also operated and
monitored. The effect of sand storms on propagation is studied by
measuring storm parameters, namely, visibility, particle size and size
distribution, and induced attenuation. The results are compared with
long-term visibility data for Riyadh, and a complete statistical
analysis is given. The effect of rain is studied by measuring both rain
rate and rain attenuation. Long-term rain data are utilized to derive
long-term rain statistics. It is shown that the measured attenuation due
to sand storms is about four times larger than the calculated
attenuation at 40 GHz. The measured rain attenuation at infrared is
found to be smaller by a factor of 0.3 than theoretically predicted
attenuation
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