Abstract: Two beam broadening methods for active electronically scanned array (AESA) antennas with uniform amplitude excitation are proposed and compared: phase tapering optimization (PTO) and a novel ...

CAPE CANAVERAL, Fla. (AP) — A spacecraft has beamed back some of the best close-up photos yet of Mercury’s north pole. The European and Japanese robotic explorer swooped as close as 183 miles (295 ...

Abstract: A hybrid two-dimensional (2D) beam-scanning lens antenna through the combination of a mechanical lens slide and a phased array primary radiator is proposed. The proposed antenna allowed for ...