Tag: Metasurface
-
Reading the twist in reflected light used to need a lab bench of spinning filters. A Harvard spinout shrank it onto a flat chip, and it is aiming straight at the dot projector behind Face ID.
-
Reconfigurable intelligent surfaces turn ordinary walls and windows into programmable radio reflectors. US patents on them are breaking out, and the leader is not Huawei. It’s Qualcomm, by more than 3-to-1, and its claims reveal a bet on positioning, not coverage.