Journal
OPTICS COMMUNICATIONS
Volume 295, Issue -, Pages 262-267Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2013.01.030
Keywords
Metamaterials; Absorber; Magnetic resonance
Categories
Funding
- National Nature Science Foundation of China [41140034]
- Central China Normal University
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A combined element method is proposed which can be applied in designing dual-band metamaterial absorber. A dual-band metamaterial absorber is presented by introducing two elements in one unit cell. We first give two absorptive peaks which are verified by experiments. Two absorption peaks appear near 9.02 GHz and 11.85 GHz with magnitude of 99.3% and 99.4%, respectively. Second, current and field distribution is given to better understand the physical mechanism of the absorption. What is worth noting, the power scattered by the electric and magnetic dipole is also displayed which can help us solve some obscure problems. At last, we investigated the effects of the dielectric-spacer thickness on the absorption. It is found that the thickness of the dielectric spacer provide sensitive effects on the magnetic resonance. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
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