Flexible Electromagnetics

Flexible electromagnetics, as an emerging and interdisciplinary field, integrate traditional electromagnetic functions such as the transmission, radiation, receiving, and processing of electromagnetic waves with advanced flexible electronic technology. This integration breaks through the inherent limitations of traditional rigid electromagnetic devices, which greatly expands the application of electromagnetic technology in complex environments. It provides new research avenues and direction for the applications of electromagnetic technology in cutting-edge fields of smart healthcare, artificial intelligence and aerospace, etc. This paper provides a comprehensive overview of recent advancements in flexible electromagnetics from four key aspects: materials, devices, integration and applications. Firstly, we provide a succinct introduction to flexible electromagnetic materials including metallic materials, inorganic nonmetallic materials, polymer materials and composite materials. Then, we explore the development status of flexible electromagnetic devices such as antennas, radio frequency resonators and electromagnetic shielding devices. Furthermore, we survey the progress and application of flexible electromagnetic integrated system in the field of intelligent medical treatment and intelligent information perception. Finally, we summarize the current challenges in flexible electromagnetics and provide a preliminary outlook on future development trends in this field.