Electromagnetic modeling of metamaterial-based sensors

In this paper metamaterial-based sensors electromagnetic modeling is presented. In particular, the interaction between the electromagnetic waves and such structures is analytically studied. The proposed sensors consist of array of resonant metallic structures, whose frequency response is modified through the variation of the surrounding dielectric environment. We consider different resonator geometries and the analysis is conducted through proper quasi-static analytical models. By exploiting the proposed analytical models, we study the structures resonant properties as a function of their geometric and electromagnetic parameters in order to optimize them and evaluate their sensitivity performances. Electromagnetic modeling represents a useful tool for the control and the enhancement of sensors properties, paving the way for new interesting sensing applications in a broad frequency range spectrum.