Chin. Phys. Lett.  2010, Vol. 27 Issue (11): 117802    DOI: 10.1088/0256-307X/27/11/117802
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Planar Metamaterial Absorber Based on Lumped Elements
GU Chao1, QU Shao-Bo1,2**, PEI Zhi-Bin1, ZHOU Hang1, XU Zhuo2, BAI Peng3, PENG Wei-Dong3, LIN Bao-Qin4
1The College of Science, Air Force University of Engineering, Xi'an 710051
2Electronic Materials Research Laboratory, Key Laboratory of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049
3Synthetic Electronic Information System Research Department, Air Force Engineering University, Xi'an 710051
4Institute of Telecommunication and Engineering, Air Force Engineering University, Xi'an 710077
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GU Chao, QU Shao-Bo, PEI Zhi-Bin et al  2010 Chin. Phys. Lett. 27 117802
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Abstract We present the design of a planar metamaterial absorber based on lumped elements, which shows a wide-band polarization-insensitive and wide-angle strong absorption. This absorber consists of metal electric resonators, the dielectric substrate, the metal film and lumped elements. The simulated absorbances under two different loss conditions indicate that high absorbance in the absorption band is mainly due to lumped resistances. The simulated absorbances under three different load conditions indicate that the local resonance circuit (lumped resistance and capacitance) could boost up the resonance of the whole RLC circuit. The simulated voltage in lumped elements indicates that the transformation efficiency from electromagnetic energy to electric energy in the absorption band is high, and electric energy is subsequently consumed by lumped resistances. This absorber may have potential applications in many military fields.
Keywords: 78.20.Ci      41.20.Jb     
Received: 02 July 2010      Published: 22 October 2010
PACS:  78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))  
  41.20.Jb (Electromagnetic wave propagation; radiowave propagation)  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/27/11/117802       OR      https://cpl.iphy.ac.cn/Y2010/V27/I11/117802
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GU Chao
QU Shao-Bo
PEI Zhi-Bin
ZHOU Hang
XU Zhuo
BAI Peng
PENG Wei-Dong
LIN Bao-Qin
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