Georgy.Moshkin
Full Member level 5
Is it really heating or just a misinterpretation?The metamaterial used in the radar system exists in the form of an antenna that actually changes its physical shape to steer the radar beam that it emits—a necessity for tracking moving objects. The change comes about by heating different parts of the antenna, which is made of multiple layers of copper wiring laid down on a circuit board in a very precise way. Testing has shown the radar system capable of spotting small aircraft as far away as 1.8 miles within a 120-degree field of view.
reference:
https://techxplore.com/news/2016-11-echodyne-metamaterials-drone-sized-radar.html