Wide-angle and polarization-independent chiral metamaterial absorber

TL;DR

This paper introduces a chiral metamaterial microwave absorber that achieves high absorption over a wide range of incident angles and polarizations, combining numerical and experimental validation for potential practical uses.

Contribution

It presents a novel, compact chiral metamaterial design that provides wide-angle, polarization-independent microwave absorption, validated through simulations and experiments.

Findings

High absorption efficiency close to one across wide incident angles

Effective for different polarizations

Validated by both simulations and measurements

Abstract

We propose a resonant microwave absorber based on a chiral metamaterial. We show, with both numerical simulations and experimental measurements, that the absorber works well for a very wide range of incident angles for different polarizations. The proposed absorber has a compact size and the absorption is close to one for a wide range of incident angles and it is a good candidate for potential applications.