Abstract: This article presents a compact wide-beam metallic bezel antenna for low Earth orbit (LEO) mobile terminal satellite communications. Inspired by the tri-current model with isotropic ...

Abstract: In this manuscript, a millimeter-wave beam-scanning antenna based on holographic technology is proposed. The antenna consists of a main waveguide (MWG) with several slotted branch waveguides ...

Air Traffic Controllers use Automatic Dependent Surveillance-Broadcast (ADS-B) as an alternative to secondary radar to track aircraft. The ADS-B is transmitted by the aircraft and contains information ...

In a college-entrance-exam landscape long dominated by the SAT and the ACT, a relative newcomer has started to gain traction—especially in red states. The Classic Learning Test, first unveiled a ...