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
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
摘要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.
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.
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2010, Vol. 27 
