Title :
Moist-air attenuation at 96 GHz over a 21-km line-of-sight path
Author :
Manabe, Takeshi ; Debolt, Robert O. ; Liebe, Hans J.
Author_Institution :
US Nat. Telecommun. & Inf. Adm., Boulder, CO, USA
Abstract :
A propagation experiment at 96 GHz over a line-of-sight (LOS) path provided data on attenuation characteristics of atmospheric water vapor. Two consecutive time periods (three days in May and 1.5 days in August 1986) with a total of about 100 h of data on signal level and meteorological conditions were analyzed with respect to absolute humidity (3-21 g/m/sup 3/) and temperature (4-32 degrees C) variations. Experimental details, the data analysis, and a comparison with model predictions are discussed. The validity of the millimeter-wave propagation model is considered and it is concluded that the field experiment tends to uphold the validity of this model at 96 GHz.<>
Keywords :
atmospheric humidity; electromagnetic wave absorption; microwave links; radiowave propagation; tropospheric electromagnetic wave propagation; 21 km; 4 to 32 degC; 96 GHz; EHF; absolute humidity; atmospheric water vapor; attenuation characteristics; line-of-sight path; meteorological conditions; millimeter-wave propagation model; moist air attenuation; radiowave propagation; signal level; temperature variations; Atmospheric modeling; Atmospheric waves; Attenuation; Humidity; Meteorology; Millimeter wave communication; Millimeter wave propagation; Radio transmitters; Receiving antennas; Transmitting antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
