Coupling analysis of resonating metamaterial slabs for the role of EMC problems

It is well-known that a resonating metamaterial can interact with other nearby resonating metamaterials. If this coupling is strong enough, it may change resonant behaviour of overall metamaterial structure composed of individual metamaterial resonators. Therefore, defining each part separately, especially the coupling factor, simplifies the electromagnetic compatibility (EMC) problems. In this study, our purpose is to investigate/disclose the coupling phenomenon by application of the signal flow graph technique using scattering parameters of individual resonators and of overall metamaterial structure. By monitoring any change between the scattering parameters of the overall metamaterial structure and the scattering parameters obtained from cascaded individual metamaterial resonators using the signal flow graph technique, any coupling between metamaterial resonators is analyzed.