TABLE 3.4-1 (end) Frequency band Atmospheric influence Terrestrial influence Applications Comments SHF Refraction and ducting, Terrestrial and Earthspace LOS, Fixed terrestrial and satellite High gain parabolic dishes and attenuation due to rain etc., diffraction and screening due to services, mobile, future MSS, horns 3-30 GHz scintillation, ducting may buildings, scatter and reflection radar remote sensing interference, multipath cause from buildings, terrain, trees and fading, absorption by rain, snow, sea fog, cloud and gases MILLIMETRIC Refractive index gradient, rain Terrestrial short distance LOS, Shortrange and mobile Small parabolic dishes etc. cause attenuation and scatter, screening by buildings and communication systems, satellite EHF 30-300 GHz absorption by water vapour and foliage applications, remote sensing, oxygen, scintillation radars SUBMILLIMETR Localized refractive index Very short range LOS, screening Shortrange communications, Mirror or lens antennas, gradient, rain etc. cause severe by trees remote sensing equipment lacking 300-3 000 GHz attenuation, absorption by gases, scintillation INFRARED AND OPTICAL Localized refractive LOS, screening by small objects Shortrange and indoor for Mirrors and lenses for antennas gradient, rain etc. cause very farinfrared, alarms, smoke 3-430 THz and severe attenuation, absorption by detectors, remote control and 430-860 THz gases, scintillation spectrometry for nearinfrared, optical LOS links
TABLE 3.4-1 (end) Frequency band Atmospheric influence Terrestrial influence Applications Comments SHF 3-30 GHz Refraction and ducting, attenuation due to rain etc., scintillation, ducting may interference, multipath cause fading, absorption by rain, snow, fog, cloud and gases Terrestrial and Earthspace LOS, diffraction and screening due to buildings, scatter and reflection from buildings, terrain, trees and sea Fixed terrestrial and satellite services, mobile, future MSS, radar remote sensing High gain parabolic dishes and horns MILLIMETRIC EHF 30-300 GHz Refractive index gradient, rain etc. cause attenuation and scatter, absorption by water vapour and oxygen, scintillation Terrestrial short distance LOS, screening by buildings and foliage Shortrange and mobile communication systems, satellite applications, remote sensing, radars Small parabolic dishes SUBMILLIMETR 300-3 000 GHz Localized refractive index gradient, rain etc. cause severe attenuation, absorption by gases, scintillation Very short range LOS, screening by trees Shortrange communications, remote sensing Mirror or lens antennas, equipment lacking INFRARED AND OPTICAL 3-430 THz and 430-860 THz Localized refractive gradient, rain etc. cause very severe attenuation, absorption by gases, scintillation LOS, screening by small objects Shortrange and indoor for farinfrared, alarms, smoke detectors, remote control and spectrometry for nearinfrared, optical LOS links Mirrors and lenses for antennas
R-HDB-58-2012-OAS-MSW-E.docx