Optimization and modulation of a multiband multimode metamaterial absorber and its application in healthy hotel indoor gas sensing

Zhirong Li, Min Zhong, Liangyun Zang and Jiaqun Chen

Journal of Electromagnetic Waves and Applications, 2023, vol. 37, issue 13, 1122-1138

Abstract: Here, a multiple modes metamaterial absorber with four peaks was proposed and verified. All absorption peaks were excited by the multiple modes coupling between adjacent unit cells. By increasing the structural parameter D, absorption peaks were strengthened and shifteded to the low-frequency region. When the lattice constant P was increased, these peaks were decreased and shifteded to the high-frequency region. Similarly, when the dielectric layer thickness t3 was gradually increased, these absorption peaks were weakened. Temperature was gradually increased, these absorption peaks were gradually reduced and shifteded to the high-frequency region. The multi-mode coupling effetct between unit cells was important to the performance of the metamaterial absorber.

Date: 2023
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DOI: 10.1080/09205071.2023.2227392

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