Fan, W; Shang, X; Kyösti, P; Hang Wong, S; Gentile, C (2025) Guest Editorial: Measurement and Characterization of THz Systems and Their Key Radio Components. IEEE Transactions on Terahertz Science and Technology, 15 (3). pp. 305-306. ISSN 2156-342X

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Abstract

Sub-terahertz (Sub-THz) and THz technology, one of the key candidates for sixth-generation (6G) wireless systems, has attracted increasing attention from academia and industry, due to its potential to unlock vast amounts of new frequency spectrum. However, designing sub-THz and THz systems presents many unique and significant challenges. These arise from demanding propagation conditions, the limited availability of commercial components, and the need for high-gain and beam steerable antennas that are highly integrated at both ends of the communication link, etc. Due to the ramp-up of research and development toward 6G wireless systems, there is growing interest in sub-THz and THz measurement and characterization across various aspects of system design (e.g., propagation channels, antennas, planar integrated circuits, and dielectric material). It is important to understand the propagation channel at these frequency bands to design and evaluate new radio systems. There is also a strong demand for fast, accurate, and cost-effective measurement methods for properly characterizing the highly directive and beam-steerable THz radio systems. Moreover, accurate on-wafer measurement is critical for producing high quality, cost effective, and reliable integrated circuits for both established and emerging sub-THz and THz applications. Furthermore, there remains a knowledge gap in the experimental validation of theoretical models for dielectric material characterization and wave-material interaction at THz frequencies. These topics have attracted a great deal of attention, with numerous research projects being conducted worldwide.

The objective of this mini-special issue is to address the challenges in measurement and characterization of sub-THz and THz systems, as well as their key radio components. Five articles are featured from leading research groups actively working in these areas. In the following section, a summary of the collected contributions is presented.

Item Type:	Article
Subjects:	Electromagnetics > RF and Microwave
Divisions:	Electromagnetic & Electrochemical Technologies
Identification number/DOI:	10.1109/TTHZ.2025.3556562
Last Modified:	18 May 2026 14:45
URI:	https://eprintspublications.npl.co.uk/id/eprint/10406