Advancements in 3D-printed architectures for electromagnetic interference shields

Abstract

The ever-increasing development of the information society brings convenience to human beings but also poses serious electromagnetic pollution problems. 3D-printed electromagnetic interference (EMI) shielding is regarded as a prospective solution as incident electromagnetic waves can be effectively reflected/scattered and lost in 3D-printed porous structures. Especially, the diversity of materials and structural design of 3D printing enable 3D-printed electromagnetic interference shields display extraordinary EMI shielding performance and considerable development potential in multi-scenario applications. This paper provides a comprehensive review of recent advances in the application of 3D printing technologies in EMI shielding. This review focuses on the mechanism of electromagnetic shielding, the electromagnetic shielding features of 3D-printed structures and the corresponding fabrication methods, as well as simulation/test techniques. Finally, the recent development of 3D-printed transparent electromagnetic shields and thermal management electromagnetic shields are also introduced, and future research and development directions for next-generation EMI shielding are envisioned.