MULTI-BAND PERFECT ABSORPTION INDUCED BY BREAKING THE SYMMETRY OF METAMATERIAL STRUCTURE

Authors

  • Dinh Hoang Tiep
  • Bui Son Tung
  • Bui Xuan Nguyen
  • Vu Dinh Lam

DOI:

https://doi.org/10.15625/2525-2518/57/4/13784

Keywords:

metamaterial, perfect absorption, multi-band

Abstract

In this work, a multi-band metamaterial perfect absorber is demonstrated numerically and experimentally in the microwave region based on the breaking symmetry of geometrical structure. Initially, when the structure, which is designed in the X shape, is in the symmetric geometry, only one absorption peak is observed. By breaking the symmetry of structure, new absorption peaks emerge, leading to the multi-band perfect absorption. In addition, the separations of absorption peaks are proportional to the degree of geometrical asymmetry. Our work presents a simple and efficient approach to create multi-band metamaterial perfect absorbers.

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Published

2019-07-02

Issue

Section

Materials