Terahertz Wireless Links Using Diffuse Scattering from Rough Surfaces

Document Type

Article

Publication Date

9-1-2019

Abstract

We describe measurements of the diffuse bistatic scattering of a modulated terahertz beam incident on five metallic rough surfaces, to investigate the implications of surface roughness for non-line-of-sight (NLOS) wireless data links at frequencies at and above 100 GHz. The measurements were performed using transmitter and receiver modules, operating at several frequencies from 100 to 400 GHz. We investigate the dependence of the scattering patterns on surface roughness parameters, including rms height and correlation length. The results are consistent with numerical models for scattering from a rough surface. They support the design of bistatic methods for future multiple antenna systems, remote sensing, imaging, and localization in the terahertz range. We demonstrate for the first time that data links which incorporate an NLOS reflection in a nonspecular direction can be established at frequencies above 100 GHz, with low bit error rates.

Identifier

85070698018 (Scopus)

Publication Title

IEEE Transactions on Terahertz Science and Technology

External Full Text Location

https://doi.org/10.1109/TTHZ.2019.2933166

e-ISSN

21563446

ISSN

2156342X

First Page

463

Last Page

470

Issue

5

Volume

9

Fund Ref

National Science Foundation

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