Characterizing Metamaterial Resonators and Finite Metasurfaces by the Method of Moments

摘要

This document discusses the procedure employed to characterize metamaterial resonators and finite metasurfaces via full-wave Method of Moments (MoM) simulation, and presents some of the results obtained for the validation and accurate analysis of conceptual designs, for the development and/or validation of analytic/circuit models, and for the prediction of effects due to the finiteness of real structures, which are often beyond the scope of analytical models or full-wave periodic simulations, and may have a definite impact on the performance of the design, such as inhomogeneous surface excitation and standing waves. Thus, the workflow presented supports metamaterial engineering from the very conception, modeling and tuning of individual resonators up to decisions upon sample size, contour shape and other manufacture parameters in order to optimize performance.