Millimeter Wave (mmWave) Technologies & Applications

Millimeter wave (mmWave) technologies & applications have been steadily expanding. Wireless communications in the sub-terahertz and terahertz (THz) frequency range have been envisioned by both academia and industry as a key enabler of future Sixth Generation (6G) wireless networks. There has been major progress towards closing the so-called THz gap. Testing, infrastructure and user technologies are quickly evolving. Understanding of mmWave propagation and concerns about interference have shown steady progress. Along with innovative signal processing, communication and networking protocols, many new applications have been developed. New questions about allocation, contention and device approvals are still discussed and are being resolved. More work is being done on the security of terahertz links and the coexistence between active and passive users of the spectrum above 100 GHz.