Radar for the Wrist
Some day you could just swipe right through the air above them thanks to miniaturized radar technology and its accompanying gesture recognition technology in development at imec, the Belgium-based R&D center. Imec’s radar chips operate at around 145 GHz, well above the bands used for car radar. “Gestures allow a lot of capabilities where screens are becoming too small for fine movements,” says Kathleen Philips, program director for IoT at imec.
Source: spectrum.ieee.org