Conventionally, to obtain the negative permeability and negative refraction metamaterials, the split-ring resonator (SRR) and cut-wire-pair (CWP) were applied. However, the properties of these structuresare strongly dependent on the polarization of electromagnetic waves. In this report, we used a high symmetry structure-the so-called dish pair structurewhich based on the CWP structure, with the aim of removing this drawback. Each unit cell consists of two identical dishes, symmetrically arranged in a dielectric spacer, providing the negative permeability when interacting with the electromagnetic wave. By expanding the radius of the dish until two adjacent dish close each other, the negative refractive index can be obtained. This is important effect to have a tunable MMs by interacting with the external field. The results of studies using the simulation, experimental and calculation quite coincide. The obtained structuredoes not depend on the polarization of the incident wave. This result is very important for practical applications using the isotropic negative refraction metamaterials.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.