This book delves into the cutting-edge research in the field of applied electromagnetism, offering an expansive overview of the fundamental aspects of emerging metamaterials and a thorough exploration of two types of novel electromagnetic radiations observed in the metamaterials, along with the corresponding devices. Encompassing a wide array of topics, this book balances the foundational theories with theoretical analyses and experimental validations. Its rigorously

structured contents are presented in an accessible manner, enhanced with illustrative figures, and detailed data, making it an ideal reference for graduate students and professionals in electronic engineering, physical electronics, electromagnetic fields and microwave technology, radio physics, plasma physics, accelerator physics, optical engineering, and so on.