학술논문
Magnetically tunable metamaterial absorbers based on two layers ferrite-ferrite structure with different ferromagnetic resonant line widths
Document Type
Conference
Author
Source
2020 3rd International Conference on Electron Device and Mechanical Engineering (ICEDME) Electron Device and Mechanical Engineering (ICEDME), 2020 3rd International Conference on. :146-149 May, 2020
Subject
Language
Abstract
Magnetically tunable metamaterial absorbers based on two layers ferrite-ferrite with different ferromagnetic resonance line widths have been proposed in this paper. The metamaterial absorber is composed of a metallic background plane, two layers ferrite-ferrite substrate and metallic SRRs. The ferromagnetic resonance generated in the metamaterial absorber under the action of a bias magnetic field, the absorption reaches the maximum at the ferromagnetic resonance frequency. The frequency increases from 2.72 GHz to 7.42 GHz with the increasing of the applied magnetic field from 1000 Oe to 2000 Oe. A good agreement between simulated results and the predicted results has been achieved. Our results pave a path towards design of tunable devices in unintended radiations suppression applications.