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Design of a broadband, wide-angle metamaterial absorber base on hybrid structure

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  • Wei Li
  • Zhongyin Xiao
  • Xinyan Ling
  • Xiaoxia Zheng
  • Chuan Li
  • Huanling Zou

Abstract

In this paper, we presented and investigated a special metamaterial absorber to achieve broadband absorption. Firstly, we proposed a two-dimensional (2D) structure, which include a hybrid layer on the top, a dielectric layer in the middle, and a metal ground on the bottom. By the hybrid design on the top layer of the absorber, we achieved broadband absorption. The relative bandwidth is 22.57%. Furthermore, in order to improve the absorption bandwidth, we changed the absorber as a three-dimensional (3D) structure. The simulated results show that the absorber can be obtained a broadband absorption, the relative bandwidth up to 82.93%. Compared to the two-dimensional structure, it is clear that the three-dimensional structure has a better absorption. According to the effective medium theory, the relative impedance is calculated to explain the absorption mechanism. Finally, we believe it will have many potential applications in sensing, energy harvest and so on.

Suggested Citation

  • Wei Li & Zhongyin Xiao & Xinyan Ling & Xiaoxia Zheng & Chuan Li & Huanling Zou, 2018. "Design of a broadband, wide-angle metamaterial absorber base on hybrid structure," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 32(5), pages 651-660, March.
    • Handle: RePEc:taf:tewaxx:v:32:y:2018:i:5:p:651-660
    DOI: 10.1080/09205071.2017.1403379
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