VNA-Based Channel Sounder System Between 330 GHz and 500 GHz for LOS Indoor Scenario

M. Qamar, Lawrence Carslake, T. H. Loh, A. Alomainy
March 2025
DOI
Short-range bench sub-THz channel sounding system

Abstract

This paper presents a Vector Network Analyzer (VNA)-based phase-compensated channel sounder, operating in the 330–500 GHz frequency range, utilizing radio-over-fiber (RoF) technology to support long-range phase-coherent measurements. A novel phase compensation scheme is introduced to mitigate phase variations caused by optical fiber, enabling its use in multi-channel and long-range measurements. The system’s performance is validated in a line-of-sight (LOS) indoor lab environment. Additionally, a link budget analysis with optical fiber lengths of up to 600 m and preliminary indoor radio channel sounding assessments have been conducted to evaluate the sounder’s functionality.

Type
Conference paper
Publication
2025 19th European Conference on Antennas and Propagation
Antenna measurements Phase measurement Indoor radio communication System performance Line-of-sight propagation Europe Network analyzers Optical variables measurement Vectors Frequency measurement sub-terahertz channel sounding phase compensation measurements
Lawrence Carslake
Lawrence Carslake
Communications Research Scientist

My research interests include communications experimental testbed design and RF simulation.

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