Abstract: A design methodology for a frequency-controlled beam-pointing high gain antenna based on a system of a large reflector and a subreflectarray at the 77-GHz band is presented. This system ...

Abstract: Metasurface reflectors have been applied to microwave wireless power transfer (WPT) for transmitting power to IoT devices that are placed at arbitrary locations. In this paper, a multi-beam ...

Imaging technology has transformed how we observe the universe—from mapping distant galaxies with radio telescope arrays to ...

Flow control is important, but the impact element of impact barriers is most relevant when protecting stationary assets. In a busy warehouse yard, reversing accidents are all too common. Lighting ...

DEAR ABBY: My wife and I have lived in a country home for the past 25 years. Behind our house used to be 20 acres of woods, which extended into a field. We were isolated and loved it. Since then, a ...