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Proceedings Paper

Effects of surface roughness on terahertz wireless links
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Paper Abstract

This work describes the diffuse scattering response of a terahertz data stream on metallic rough surfaces to investigate its influence on wireless channels. The measurements are performed using a wireless link with carrier frequencies operating from 100-400 GHz with transmitter and receiver modules mounted on separate rotatable rails. The acquired data are analyzed to determine the dependence of scattering pattern on surface roughness parameters, including rms height and correlation length. Fundamentals of scattering and reflections are explained and integral equation method (IEM) with an exponential correlation function is verified for theoretical predictions. The implications of surface roughness for non-line-of-sight (NLOS) paths in non-specular directions are discussed for the first time.

Paper Details

Date Published: 18 December 2019
PDF: 7 pages
Proc. SPIE 11334, AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications, 113341J (18 December 2019); doi: 10.1117/12.2542505
Show Author Affiliations
Jianjun Ma, Beijing Institute of Technology (China)
Rong Wang, Beijing Institute of Technology (China)
Rabi Shrestha, Brown Univ. (United States)
Wei Zhang, Brown Univ. (United States)
Lothar Moeller, New Jersey Institute of Technology (United States)
Daniel M. Mittleman, Brown Univ. (United States)

Published in SPIE Proceedings Vol. 11334:
AOPC 2019: Optoelectronic Devices and Integration; and Terahertz Technology and Applications
Zhiping Zhou; Xiao-Cong Yuan; Daoxin Dai, Editor(s)

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