A significant step forward in D-band wireless communications has been achieved through a joint demonstration by Anritsu and VTT, highlighting the real-world viability of ultra-high-frequency wireless links. The project validates that D-band technology can deliver stable, high-capacity performance suitable for future backhaul, industrial connectivity, defence systems, and emerging 6G networks. Jonathan Borrill, CTO, Test & Measurement, Anritsu, commented: “Anritsu is proud to collaborate with VTT to advance the practical use of D-band wireless technology. “Together, we have validated performance levels that bring high-frequency wireless links closer to real-world deployment.” Understanding the D-band’s role in future networks The D-band spans frequencies roughly between 110 GHz and 170 GHz, offering significantly wider contiguous bandwidth than today’s 5G millimetre-wave spectrum. This makes it a strong candidate for ultra-high-capacity wireless links where fibre deployment is impractical or costly. Although higher frequencies introduce challenges such as increased propagation loss, advances in antenna technology and signal processing are enabling reliable short- and medium-range links. System-level testing confirms multi-gigabit performance The joint trials focused on wireless links operating between 110 GHz and …