Building a comprehensive complex permittivity library for THz radio planning using quasi-optical measurements
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
The lack of an accessible comprehensive reliable dataset of material properties at terahertz (THz) frequencies is a significant roadblock for the development of accurate propagation models for THz wireless systems. To fill this gap, we extract the complex permittivity of 75 different home and commercial furnishings categorized into fabric, leather, plastic, stone, tile and wood from quasi-optical measurements. Given that quasi-optical transmission measurement standards are not developed yet, we utilize both vector network analysis and time-domain spectroscopy under collimated and focused beam illumination to highlight the differences and the challenges that precise material extraction faces at THz, and to compute average complex permittivities with confidence intervals.
Date Issued
2025-05-01
Date Acceptance
2025-02-01
Citation
IEEE Transactions on Terahertz Science and Technology, 2025, 15 (3), pp.307-318
ISSN
2156-342X
Publisher
Institute of Electrical and Electronics Engineers
Start Page
307
End Page
318
Journal / Book Title
IEEE Transactions on Terahertz Science and Technology
Volume
15
Issue
3
Copyright Statement
Copyright © 2025 IEEE. This is the author’s accepted manuscript made available under a CC-BY licence in accordance with Imperial’s Research Publications Open Access policy (www.imperial.ac.uk/oa-policy)
License URL
Publication Status
Published
Date Publish Online
2025-02-13