中国物理B ›› 2013, Vol. 22 ›› Issue (6): 67801-067801.doi: 10.1088/1674-1056/22/6/067801

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

An ultrathin wide-band planar metamaterial absorber based on fractal frequency selective surface and resistive film

范跃农a b, 程用志a, 聂彦a, 王鲜a, 龚荣洲a   

  1. a School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
    b Department of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China
  • 收稿日期:2012-08-29 修回日期:2012-10-30 出版日期:2013-05-01 发布日期:2013-05-01
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51207060) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20090142110004).

An ultrathin wide-band planar metamaterial absorber based on fractal frequency selective surface and resistive film

Fan Yue-Nong (范跃农)a b, Cheng Yong-Zhi (程用志)a, Nie Yan (聂彦)a, Wang Xian (王鲜)a, Gong Rong-Zhou (龚荣洲)a   

  1. a School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
    b Department of Mechanical and Electronic Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333403, China
  • Received:2012-08-29 Revised:2012-10-30 Online:2013-05-01 Published:2013-05-01
  • Contact: Cheng Yong-Zhi E-mail:cyz0715@126.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51207060) and the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20090142110004).

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摘要： We propose an ultrathin wide-band metamaterial absorber (MA) based on Minkowski (MIK) fractal frequency selective surface (FSS) and resistive films. This absorber consists of a periodic arrangement of dielectric substrate sandwiched with MIK fractal loop structure electric resonator and resistive film. The finite element method (FEM) is used to simulate and analyze the absorption of MA. Compared with the MA backed copper film, the designed MA backed resistive film exhibits an absorption of 90% in a frequency region of 2 GHz-20 GHz. The power loss density distribution of MA is further illustrated to explain the mechanism of proposed MA. Simulated absorptions in different cases of incidence indicate that this absorber is polarization-insensitive and of wide-angle. Finally, the further simulated results indicate that surface resistance of resistive film and dielectric constant of substrate can affect the absorbing property of the MA. This absorber may be used in many military fields.

关键词: wide-band, metamaterial absorber, fractal frequency selective surface, resistive films

Abstract: We propose an ultrathin wide-band metamaterial absorber (MA) based on Minkowski (MIK) fractal frequency selective surface (FSS) and resistive films. This absorber consists of a periodic arrangement of dielectric substrate sandwiched with MIK fractal loop structure electric resonator and resistive film. The finite element method (FEM) is used to simulate and analyze the absorption of MA. Compared with the MA backed copper film, the designed MA backed resistive film exhibits an absorption of 90% in a frequency region of 2 GHz-20 GHz. The power loss density distribution of MA is further illustrated to explain the mechanism of proposed MA. Simulated absorptions in different cases of incidence indicate that this absorber is polarization-insensitive and of wide-angle. Finally, the further simulated results indicate that surface resistance of resistive film and dielectric constant of substrate can affect the absorbing property of the MA. This absorber may be used in many military fields.

Key words: wide-band, metamaterial absorber, fractal frequency selective surface, resistive films

中图分类号:  (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))

  • 78.20.Ci
41.20.Jb (Electromagnetic wave propagation; radiowave propagation)