Abstract: Design of an ultrawideband co-polarized linear retrodirective array (RDA) operating in the high-frequency (HF) band (2–30 MHz) and beyond is reported for the first time and validated using ...

Abstract: Conventional phased-array ultrasound can detect defects in nuts; however, accurately reconstructing their irregular shapes and precise spatial structures remains challenging. To faithfully ...

Sam Illingworth does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...