Effect of Standing Wave on Terahertz Channel Model

TL;DR

This paper investigates the impact of standing waves on terahertz channel models, extending existing models to include this effect based on measurements across five key frequency bands, enhancing accuracy for future high-data-rate communication systems.

Contribution

It introduces an extension to existing terahertz channel models by incorporating standing wave effects, validated through measurements at multiple frequency bands.

Findings

Standing waves significantly affect signal propagation at specific distances.

Extended models align well with experimental measurements.

Analysis covers five promising terahertz frequency bands.

Abstract

There is a growing interest in exploiting the terahertz frequency band for future communication systems that demand high data rates. Given the complex propagation behavior of this frequency band, various researchers have developed channel models that can be utilized in the development of communication systems. These models however do not include a crucial aspect of terahertz propagation at short distances: the presence of standing waves. Our measurements show that at specific distances, the effect of standing waves is significant. In this paper, we extend previous terahertz channel models to include the effect of standing waves and show a good fit with our measurements. Our measurements and modeling cover the five most promising terahertz frequency bands: 140, 220, 340, 410, 460 GHz.