https://www.sciencedaily.com/releases/2023/03/230316114003.htm

The potential of THz band technology is unlimited, as it has abundant spectrum resources to support 100 Gbps (gigabit per second)- and even Tbps (terabit per second)-level ultrahigh-speed data rate for wireless communications, which is hundreds to thousands of times faster than the 5G transmission data rate. However, conventional THz systems use bulky, heavy dielectric lenses and reflectors, which can guide waves only to a fixed transmitter or detector, or transmit them to a single receiver located at a fixed position or covering a limited area. This hinders the development of future 6G applications, which require precise positioning and concentrated signal strength.

Existing bulky systems hinder 6G applications