Ishii, S.2016-10-272016-10-272010-10Wireless Engineering and Technology, 2010, 1, 92-95http://dx.doi.org/10.4236/wet.2010.12014http://hdl.handle.net/123456789/1066Rain attenuation values were calculated using empirical raindrop-size distributions, which were, Marshall-Palmer (M-P), Best, Polyakova-Shifrin (P-S) and Weibull raindrop-size distributions, and also calculated using a specific rain attenuation model for prediction methods recommended by ITU-R. Measurements of Terahertz wave taken at 313 GHz (0.96 mm) were compared with our calculations. Results showed that the propagation experiment was in very good agreement with a calculation from the specific attenuation model for use in prediction methods by ITU-R.enRain AttenuationRaindrop-Size DistributionTerahertz WavesP-S DistributionWeibull DistributionITU-RArticle