A Wide-Band Metamaterial Absorber Based on Loaded Magnetic Resonators
GU Chao1, QU Shao-Bo1,2**, PEI Zhi-Bin1, MA Hua1, XU Zhuo2, BAI Peng3, PENG Wei-Dong3, LIN Bao-Qin1
1College of Science, Air Force Engineering University, Xi'an 710051 2Key Laboratory of Electronic Materials Research of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 3Research Center of Synthetic Electronic Information System and Electronic countermeasure, Air Force Engineering University, Xi'an 710051
A Wide-Band Metamaterial Absorber Based on Loaded Magnetic Resonators
GU Chao1, QU Shao-Bo1,2**, PEI Zhi-Bin1, MA Hua1, XU Zhuo2, BAI Peng3, PENG Wei-Dong3, LIN Bao-Qin1
1College of Science, Air Force Engineering University, Xi'an 710051 2Key Laboratory of Electronic Materials Research of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 3Research Center of Synthetic Electronic Information System and Electronic countermeasure, Air Force Engineering University, Xi'an 710051
摘要A wide-band polarization-insensitive and wide-angle metamaterial absorber based on loaded magnetic resonators is presented. The unit cell of this absorber consists of a magnetic resonator loaded with lumped resistances, a dielectric substrate and a back metal film. Theoretical and simulated results show that this absorber has a wide-band strong absorption for the incident wave from 3.87 GHz to 21.09 GHz. Simulated absorbance values under loading and unloading conditions indicate that electrocircuit's resonances are more stable than electromagnetic resonances and thus can be used to realize wide-band absorption. Simulated absorbance values under different polarization angles and different angles of incidence indicate that this absorber is polarization-insensitive and wide-angle. It may have potential applications in military fields.
Abstract：A wide-band polarization-insensitive and wide-angle metamaterial absorber based on loaded magnetic resonators is presented. The unit cell of this absorber consists of a magnetic resonator loaded with lumped resistances, a dielectric substrate and a back metal film. Theoretical and simulated results show that this absorber has a wide-band strong absorption for the incident wave from 3.87 GHz to 21.09 GHz. Simulated absorbance values under loading and unloading conditions indicate that electrocircuit's resonances are more stable than electromagnetic resonances and thus can be used to realize wide-band absorption. Simulated absorbance values under different polarization angles and different angles of incidence indicate that this absorber is polarization-insensitive and wide-angle. It may have potential applications in military fields.
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2011, Vol. 28 
