Abstract: A three-dimensional (3-D) bandstop frequency selective structure (FSS) with an ultra-wide stop-band is presented in this paper. It is comprised of two stepped-impedance parallel-plate ...

An ultra-wide bandwidth (UWB) remote-powered positioning system for potential use in tracking floating objects inside space stations is presented. It makes use of battery-less tags that are powered-up ...

Armed with the world's largest digital camera, the Vera C. Rubin Observatory in Chile will take night-sky images that ...

A top a mountain in Chile, where the days are dry and nights are clear, a team of scientists and engineers is preparing for ...