Title :
Multipath effects due to rain at 30-50 GHz frequency communication links
Author :
de Wolf, D.A. ; Ligthart, L.P.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
8/1/1993 12:00:00 AM
Abstract :
This study makes predictions about signal degradation along terrestrial radio links, operated at wide bandwidth and 30-50-GHz frequencies, caused by inhomogeneities in fairly severe rain storms. While the line-of-sight path may experience moderate to severe attenuation, the real problem at hand is to estimate the effect of multipath via scatterings from rain drops on side paths. These longer-path contributions can cause pulse distortions and related high-bandwidth effects which are deleterious to the information content, even upon successful reception of attenuated signals. The results show that significant degradation of high-bandwidth signals accompanying attenuations of more than ~40 dB are possible under intermittent rainfall conditions
Keywords :
fading; microwave links; radiowave propagation; rain; tropospheric electromagnetic wave propagation; 30 to 50 GHz; LOS path; attenuation; fairly severe rain storms; high-bandwidth effects; intermittent rainfall conditions; line-of-sight path; multipath effects; pulse distortions; rain drops; side paths; signal degradation; terrestrial radio links; Attenuation; Bandwidth; Degradation; Distortion; Frequency; RF signals; Radio link; Rain; Scattering; Storms;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
