Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time occupancy and mov ...

Abstract: A Gallium Nitride (GaN)-based phototransistor based on the double-heterojunction structure is reported as the high-quality imaging unit. Its multiple operation modes are explored on a ...

Abstract: This article proposes a Van Atta array based on a novel feed network to achieve dynamic control of the array radar cross section (RCS). Different from existing Van Atta arrays that can only ...