Abstract: This article presents a novel constellation modeling method for fast and accurate calibration of beamforming integrated circuits (BFICs) and radio frequency (RF) chains in large-scale phased ...

Abstract: By controlling the amplitude and phase of the array element, the array antenna synthesizes different beam direction and shape, and has the characteristics of strong directivity, low sidelobe ...

LONDON—President Trump’s crackdown on Chinese imports in the U.S. has redirected a tsunami of cheap stuff into Europe. Some of it is pooled in Xue Er’s backyard. A stay-at-home mom in her 40s who ...