Researchers develop world's first universal metasurface antenna for high-security 6G communications

https://techxplore.com/news/2023-12-world-universal-metasurface-antenna-high-security.html

"independent and simultaneous manipulation of amplitude, phase, frequency, polarization and direction of electromagnetic radiation through software control... can manipulate information by directly generating the modulated waveform in free space... low cost, high integration and low power consumption... integrating sensing and communications... large-capacity, high-security/ privacy due to inherent direction modulation...  6G wireless, real-time imaging and wireless power transfer"