Quick Retrieval of Effective Electromagnetic Metamaterial Parameters by Using a Multi-fidelity Surrogate Modelling Approach

Electromagnetic metamaterials (MMs) are articial composites that exhibit exceptional physical characteristics. Their design, which relies on the retrieving of the eective medium parameters, is usually a very time-consuming process because of the high number of full-wave simulations involved in this task. To alleviate the related computational burden, we propose to use a Multi-delity Surrogate Modelling (MFSM) approach. Numerical results demonstrate that this methodology turns out to be promising for a quick evaluation of the scattering parameters from which the eective constitutive parameters of a MM are retrieved, as shown by two numerical examples.