Amazing stuff!
"... researchers are bending a type of high-energy microwave radiation around solid obstacles to unlock new bandwidths for wireless data transmission. ...
new study ... brings us closer to transmitting data via ultrahigh frequency microwaves (100–300 gigahertz), which the authors say will play a critical role in next-generation wireless technologies. ...
team has designed a system which transmits the signal as a type of wave which can curve around obstructions without spreading out and losing its intensity. ..."
From the abstract:
"The line-of-sight blockage is one of the main challenges in sub-terahertz wireless networks. Interestingly, the extended near-field range of sub-terahertz nodes gives rise to near-field wavefront shaping as a feasible remedy to tackle this issue. Recently, Airy beams emerged as one promising solution that opens significant opportunities to circumvent blockers with unique self-accelerating properties and curved trajectories. Yet, to unleash the full potential of curved beams in practice, one fundamental challenge remains: How to find the best beam trajectory? In principle, an infinite number of trajectories can be engineered.
To find the optimal trajectory, we develop a physics-informed machine-learning framework for Airy beam shaping based on a detailed understanding of near-field electromagnetics, ray optics, and wave optics. The experimental results indicate that Airy beams, when correctly configured, can substantially increase the link budget under high-blockage scenarios even compared to near-field beam focusing, providing insight into coverage expansion and blind-spot reduction."
A physics-informed Airy beam learning framework for blockage avoidance in sub-terahertz wireless networks (open access)
Fig. 1: Generation and features of Airy beams.
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