Circuit Model Analysis of a Polarization and Wide Angle Independent Hexagonal Shaped Metamaterial Absorber
关键词:
Circuit model analysis, metamaterial absorber, triple band, wide angle independent摘要
This paper presents an equivalent circuit model of metamaterial absorber (MA) based on triple hexagonal shaped resonators. This metamaterial unit cell absorber possesses a nearly wide angle perfect absorption of incidence wave and polarization independence. The absorption is occurred in three different frequencies. The absorptivity is as high as 98%, 93% and 94%, at 3.5 (GHz), 4.7 (GHz) and 6.6 (GHz), respectively. The equivalent circuit model of a single hexagonal ring has been extended to the triple band absorber structure. The simulation of the circuit model agrees well with the full-wave simulation, regarding to return loss and absorption. The important features of this method are simple fabrication of metamaterial absorber and maximum absorption in three frequencies. The proposed metamaterial absorber has wide applications such as thermal detector, stealth technology and imaging. Moreover, a very good agreement between simulation and measurement results has been observed.
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参考
V. G. Veselgo, “The electro dynamics of substances with simultaneously negative value of ε and μ,” Sov. Phys. Usp., vol. 10, no. 4, pp. 509-514, Feb. 1968.
J. B. Pendry, A. J. Holden, D. J. Robbins, and W. J. Stewart, “Low frequency plasmons in thin-wire structure,” J. Phys. Condens. Matter, vol. 10, pp. 4785-4809, 1998.
J. B. Pendry, A. J. Holden, D. J. Robbins, and W. J. Stewart, “Magnetism from conductors and enhanced nonlinear phenomena,” IEEE Trans. Microwave Theory Tech., vol. 47, pp. 2075-2084, 1999.
D. R. Smith, W. J. Padilla, D. C. Vier, S. C. NematNasser, and S. Schultz, “Composite medium with simultaneously negative permeability and permittivity,” Phys. Rev. Lett., vol. 84, no. 18, pp. 4184-4187, May 2000.
S. Jamilan, M. N. Azarmanesh, and D. Zarifi, “Design and characterization of a dual band metamaterial absorber based on destructive interferences,” Progress In Electromagnetics Reseach C, vol. 47, pp. 95-101, 2014.
M. H. Li, H-L. Yang, X-W. Hou, Y. Tian, and DY. Hou, “Perfect metamaterial absorber with dual bands,” Prog. Electromagn. Res., 108:37-49, 2010.
X-J. He, Y. Wang, J-M. Wang, T-L. Gui, and Q. Wu, “Dual-band terahertz metamaterial absorber with polarization insensitivity and wide incident angle,” Prog. Electromagn. Res., 115:381-397, 2011.
L. Huang and H. Chen, “Multi-band and polarization insensitive metamaterial absorber,” Prog. Electromagn. Res., 113:103-110, 2011.
L. Li, Y. Yang, and C. Liang, “A wide-angle polarization-insensitive ultra-thin metamaterial absorber with three resonant modes,” J. Appl. Phys., 110:063702, 2011.
Y. J. Huang, G. J. Wen, J. Li, W. R. Zhu, P. Wang, and Y. H. Sun, “Wide angle and polarization independent metamaterial absorber based on snowflake shaped configuration,” Journal of Electromagnetic Waves and Applications, vol. 27, no. 5, pp. 552-559, 2013.
F. Dincer, M. Karaaslan, E. Unal, E. Akgol, E. Demirel, and C. Sabah, “Polarization and angle independent perfect metamaterial absorber based on discontinuous cross-wire-strips,” Journal of Electromagnetic Waves and Applications, vol. 28, no. 6, pp. 741-751, 2014.
S. Fallahzadeh, K. Forooraghi, and Z. Atlasbaf, “Design, simulation and measurement of a dual linear polarization insensitive planar resonant metamaterial absorber,” Prog. Electromagn. Letter, vol. 35, pp. 135-144, 2012.
P. K. Singah, S. Kabiri, L. Chao, M. N. Afsar, and S. Sonkusale, “Boardband millimeterwave metamaterial absorber based on embedding of dual resonators,” Prog. Electromagn. Res., vol. 142, pp. 625-638, 2013.
S. Bhattacharyya, S. Ghosh, and K. V. Srivastava, “Equivalent circuit model of an ultra-thin polarization-independent triple band metamaterial absorber,” AIP Advances 4, 097127, 2014.
