A nonreciprocal, magnetic metasurface

Abstract

Non-reciprocal metasurfaces have recently attracted significant attention due to their ability to control electromagnetic waves in unprecedented ways. In this study, we propose a novel, non-reciprocal metasurface that utilizes a combination of magnetic materials and electrical conductors to achieve non-reciprocity to plane wave illumination at microwave frequencies. Experimental results demonstrate that the metasurface achieves an isolation characteristic of at least 15 dB at 6.5 GHz.

Experimental verification of nonreciprocal electromagnetic metasurface in a finite‐size array

“…Our research group has proposed a method to implement a non-reciprocal metasurface using a straightforward combination of cylindrical ferrite and metal patches [8]. Previous reports focused on theoretical proposals on an infinite plane, electromagnetic field simulations, and experimental results on unit cells [9]. In this report, we present experimental verification results for finite-sized arrays, addressing these critical issues.…”