Advancements and challenges in wireless power transfer: A comprehensive review

This paper provides a comprehensive overview of recent advancements, challenges, and potential applications of wireless power transfer technology. It covers various aspects of wireless power transfer, including magnetic-filed coupling, electric-filed coupling, microwaves, and laser technologies. The paper sheds light on physical mechanisms, current state-of-the-art techniques, their limitations, and the prospects of this rapidly evolving field, with a focus on both theoretical developments and practical implementations. This review aims to contribute to the understanding and advancement of wireless power transfer systems for diverse applications in the modern technological landscape. This paper discusses not only the field of wireless power transmission that has already been applied, such as wireless charging of electric vehicles, consumer electronics, implantable medical devices, and underwater equipment, but also applications that are still under research such as space microwave transmission, large-scale free space energy transmission, and roadway-powered electric vehicles.