Microwave ferrite materials and devices: Progress and prospects

Abstract Microwave ferrites, with unique gyromagnetic properties, have been widely utilized in microwave technologies. This review summarizes recent advancements in microwave ferrites, focusing on three crystal structures: garnet, spinel, and hexaferrites. Strategies for optimizing ferrite performance are introduced, including cation substitution, additive doping, and process parameter optimization. Representative applications of microwave ferrites in the fields of radar, 5G communications, and electromagnetic absorption are discussed, and future challenges and prospects of microwave ferrites are analyzed.