Experimental confirmation and physical understanding of ultra-high bit rate impulse radio in the THz digital communication channels of the atmosphere

We have performed highly accurate numerical calculations of high bit rate impulse propagation through the seven digital communication channels of the atmosphere at RH 58% (10 g m^-3). These calculations maximized bit rates for pathlengths equal to or longer than 100 m. We have experimentally verified our calculations for three channels with a propagation pathlength of 137 m and RH 65% (11.2 g m^-3). Excellent agreement between measurement and theory was obtained for Channel 3 at 252 GHz, bit rate 84 Gb s^-1, FWHM bandwidth (BW) 180 GHz; Channel 6 at 672 GHz, 45 Gb s^-1, BW 84 GHz; and Channel 7 at 852 GHz, 56.8 Gb s^-1, BW 108 GHz.