Nearly everyone has experienced it: After a night of poor sleep, you don't feel as alert as you should. Your brain might seem foggy, and your mind drifts off when you should be paying attention.

Abstract: This paper presents two metasurface-based design approaches for millimeter-wave (mm-Wave) antenna arrays to simultaneously achieve wide-angle beam scanning and high-isolation between array ...

Abstract: The adaptive array, which can distinguish the interference from the signal of interest (SoI) by the adaptive algorithm, is crucial for radar anti-interference. However, it has a ...

Why the brain feels "foggy" after a poor night's sleep has finally been explained. Attention lapses due to sleep deprivation coincide with a flushing of fluid from the brain - a process that normally ...