A Comparative Study of Different Negative Permeability Metamaterial Structures at X band : Useful for Microwave Applications

This paper presents a comparative study of eight frequently used negative permeability metamaterial structures at X band (8GHz - 12.4GHz). The structures have been simulated using commercial 3D FEM (Finite Element Method) solver. A standard scattering-parameter based retrieval method is applied to extract permeability of these structures and compared for size, insertion loss and negative permeability characteristics. Finally, one of the structures have been fabricated and tested using free space focused beam metamaterial characterization setup at X band for validation.