Electricity and data over-the-air: The simultaneous transmission of 5G and power

https://techxplore.com/news/2022-06-electricity-over-the-air-simultaneous-transmission-5g.html

"receives 5G and millimeter-wave power signal... power signal activates device and provides power... transmission mode sends 5G signal same direction... Thus, a device like this can easily communicate and be part of the Internet of Things without needing a separate plug point, unlike most current indoor Internet of Things devices. The device can generate power over a wide span of angles and distances and, thus, does not suffer from the challenges faced by previous wirelessly powered devices"

Related: DARPA looks to laser to beam power across the world

https://newatlas.com/technology/darpa-laser-beam-power-across-distances/