Electromagnetic Wave Absorber with Isotropic and Anisotropic Metamaterials
International Journal of Materials Science and Applications
Volume 6, Issue 6, November 2017, Pages: 302-308
Received: Dec. 5, 2017; Published: Dec. 6, 2017
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Dong Yunxia, School of Electrical and Electronic Engineering, North China Electric Power University, Beijing, China
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The absorption characteristics of the electromagnetic wave propagating through one dimensional system with the metamaterials are studied basing on the transfer matrix method. The relations between the absorptivity with the frequency of the incident wave and the thickness of the metamaterials are calculated. The results show that the absorptivity is about 100% near the resonant frequency of the isotropic metamaterials. This means that the metamaterials can be used as a narrow band absorber. The thickness of the metamaterials determines the width of the band. Furthermore the absorption characteristics of the multilayers system with the isotropic and anisotropic metamaterials are studied. The band width increases with the addition of the layer number. The absorption is dependent on the polarization direction of the incident electromagnetic wave for the anisotropic metamaterials. Thus the anisotropic metamaterials can be used to be the polarization tunable absorber. The layer number can also determine the frequency for the maximum absorption as for the multilayer system.
Absorber, Metamaterials, Multilayer System, Polarization
To cite this article
Dong Yunxia, Electromagnetic Wave Absorber with Isotropic and Anisotropic Metamaterials, International Journal of Materials Science and Applications. Vol. 6, No. 6, 2017, pp. 302-308. doi: 10.11648/j.ijmsa.20170606.16
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