| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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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
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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
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| Cite this article: |
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GU Chao, QU Shao-Bo, PEI Zhi-Bin et al 2011 Chin. Phys. Lett. 28 067808 |
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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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| Keywords:
78.20.Ci
41.20.Jb
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Received: 18 October 2010
Published: 29 May 2011
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| PACS: |
78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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