Characterization of Rain Attenuation in 80–200 GHz From Experimental Drop Size Distributions

The use of frequencies well into the extra high frequency (EHF) band (30–300 GHz) is a key element in 5G and beyond technologies. Rain attenuation major impairment affecting terrestrial radio links this band. In absence enough experimental measurements, rain can be estimated by using physical models radiowave scattering raindrops combined with information about raindrop size distributions (DSD). work, characterization 80–200 GHz range carried out from large database 12 years DSD gathered Madrid, Spain. for each collected minute two approaches: first one based on assumption as spherical application Mie theory, second that uses non-spherical model electromagnetic simulations consequently more realistic. main results show currently used International Telecommunications Union-Radiocommunications Sector (ITU-R) generally underestimates rain-specific attenuation; influence polarization becomes smaller negligible approaches 200 GHz; significantly varies due to spread DSD. Moreover, variability also proposed.