Exact modeling method for discrete finite metamaterial lens

TL;DR

This paper introduces an exact modeling method for finite discrete metamaterial lenses that captures effects missed by continuous models, aligning closely with experimental results.

Contribution

The paper presents a rigorous discrete modeling approach for finite metamaterials, improving accuracy over traditional continuous models.

Findings

Discrete model reveals effects missed by continuous models

Results closely match experimental data

Model applicable to magnetic resonant imaging lenses

Abstract

We describe an efficient rigorous model suitable for calculating the properties of finite metamaterial samples, which takes into account the discrete structure of metamaterials based on capacitively loaded ring resonators. We illustrate how this model applies specifically to a metamaterial lens employed in magnetic resonant imaging. We show that the discrete model reveals the effects which can be missed by a continuous model based on effective parameters, and that the results are in close agreement with the experimental data.