Abstract: Compared to conventional 3D radar systems, 4D radar systems require higher angular resolution in both azimuth and elevation. Besides, sparse arrays offer several advantages, including ...

Abstract: The free-space wavelengths in the 300-GHz band are so short that it is extremely challenging to realize phased arrays with a half-wave antenna pitch, required for preventing grating lobes.

Turning a boring 2D photo into a more dynamic, 3D-like viewing experience might sound impossible. But you can do it right from your phone running iOS 26, thanks to Apple's new Spatial Scenes. Apple's ...