Soli technology – Google’s and Infineon’s radar-based hand motion sensor.

https://www.electronics-lab.com/soli-technology-googles-infineons-radar-based-hand-motion-sensor/

The Federal Communications Commission (FCC) allows approval for Google’s radar-based hand motion sensor. By Wisse Hettinga [via] Soli sensor technology works by emitting electromagnetic waves in a broad beam. Objects within the beam scatter this energy, reflecting some portion back towards the radar antenna. Properties of the reflected signal, such as energy, time delay, and frequency […]