Controlling metamaterial resonances via dielectric and aspect ratio effects

TL;DR

This paper investigates how the aspect ratio and substrate thickness of split ring resonators influence their LC resonance, aiming to improve sensitivity and tuning for sensing applications.

Contribution

It demonstrates that controlling aspect ratio and substrate thickness significantly affects LC resonance, enhancing the potential for sensitive metamaterial-based sensors.

Findings

Low height SRRs on thin substrates are highly sensitive to dielectric changes.

Aspect ratio and substrate thickness are key parameters for resonance tuning.

Metafilms with optimized parameters show promise for sensing applications.

Abstract

We study ways to enhance the sensitivity and dynamic tuning range of the fundamental inductor-capacitor (LC) resonance in split ring resonators (SRRs) by controlling the aspect ratio of the SRRs and their substrate thickness. We conclude that both factors can significantly affect the LC resonance. We show that metafilms consisting of low height SRRs on a thin substrate are most sensitive to changes in their dielectric environment and thus show excellent potential for sensing applications.