Title :
Digital THz communication links in the atmosphere
Author :
Grischkowsky, D. ; Yihong Yang ; Mandehgar, Mahboubeh
Author_Institution :
Sch. of Electr. & Comput. Eng., Oklahoma State Univ., Stillwater, OK, USA
Abstract :
Our measurements and linear dispersion theory calculations show that it is possible to have high performance THz links in the atmosphere. A direct 95 GHz, 20 km ground link at 10 Gb/s would have a power loss of 9 dB due to water vapor at RH 58% (10g/m3) and 20 ° C and O2 absorption, and a diffraction loss of 36 dB for 1 m dia. antennas. A direct 250 GHz, 40,000 km satellite link at 20 Gb/s would have a 2 km (equivalent to the zenith integration) water vapor loss of 8 dB and a diffraction loss of 76 dB with 5 m ground and 2 m satellite antennas.
Keywords :
atmospheric electromagnetic wave propagation; digital communication; dispersion (wave); millimetre wave antennas; radiowave propagation; satellite antennas; satellite links; O2 absorption; antennas; atmosphere; bit rate 10 Gbit/s; diffraction loss; digital THz communication links; distance 2 km; distance 20 km; distance 40000 km; distance 5 m; frequency 250 GHz; frequency 76 GHz; frequency 95 GHz; ground link; linear dispersion theory calculations; loss 36 dB; loss 9 dB; satellite antennas; satellite link; size 1 m; size 2 m; temperature 20 degC; water vapor; Absorption; Loss measurement; Microwave propagation; Optical fiber dispersion; Optical fibers; Propagation losses; Satellites;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
Conference_Location :
Mainz
DOI :
10.1109/IRMMW-THz.2013.6665494
