Research and Development of Terahertz Wireless Communications for Beyond 5G and 6G

「The research group experimentally confirmed that, at 300 GHz, a Bessel beam generated by the group self-heals as it propagates after its shape is disturbed by an obstacle placed within the beam cross-section, and that communications errors caused by obstacles are less frequent than with a conventional Gaussian beam.」

「We obtained experimental station licences for frequencies in the 240.5 GHz and 300 GHz bands and began testing the construction of a terahertz-wave communications area in Daiba, Minato-ku, Tokyo, in September 2022. In an unobstructed environment, we measured radio-wave propagation and confirmed the construction of a communications area over a maximum distance of more than 900 m.」

「In a joint research project with Gifu University of the Tokai National Higher Education and Research System, the National Institute of Information and Communications Technology, National Research Tomsk State University and Tomsk Polytechnic University, we developed an ultra-compact antenna operating with 300 GHz-band terahertz wireless signals and successfully conducted a communications experiment at 17.5 Gbps over a short distance of 600 mm. We will continue to accelerate research and development aimed at the practical application of ultra-high-speed wireless communications in the Beyond 5G and 6G era, contributing to the development of the telecommunications business.」