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An analytical study of the early-time surface current density induced on a perfectly conducting circular cylinder excited by a parallel line source carrying a δ-function current has been carried out. Expressions of the current density for both the shadow and the illuminated region are obtained. Numerical results are presented to illustrate the variation of the surface current density with time for...
While both IR and THz/mmW wireless communications share some attributes such as line-of-sight signaling, their behaviors in response to various weather phenomena such as rain, fog, dust, and air turbulence can be quite different. The performance of mmW/THz and infrared free-space communication links are compared under the same weather conditions.
Terahertz (THz) free space signaling through experimental controlled atmospheric turbulence is reported. A THz link at 625 GHz carrier frequency with a maximum data rate of 2.5 Gb/s has been developed. Power attenuation and bit error rate (BER) performance caused by air turbulence are presented and compared with an infrared (IR) link at 1550nm wavelength. Numerical simulation of THz attenuation under...
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