期刊
OPTICS EXPRESS
卷 21, 期 8, 页码 9691-9702出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.21.009691
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资金
- ICT Standardization program of KCC
- Korean Ministry of Science, ICT and Future Planning though the KCA
- Priority Research Center Program through the National Research Foundation (NRF)
- Korean Ministry of Education Science and Technology (MEST) [2011-0031392]
- MEST and PAL, Korea
- NRF
- MEST [2010-0029418, 2010-0025306, 2012K1A2B2A07033424]
- Korea Communications Agency (KCA) [13-911-01-001, 2013-PK10-13] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2010-0027963, 2010-0025306, 2009-0094023] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
We propose multi-band metamaterial absorbers at microwave frequencies. The design, the analysis, the fabrication, and the measurement of the absorbers working in multiple bands are presented. The numerical simulations and the experiments in the microwave anechoic chamber were performed. The metamaterial absorbers consist of an delicate arrangement of donut-shape resonators with different sizes and a metallic background plane, separated by a dielectric. The near-perfect absorptions of dual, triple and quad peaks are persistent with polarization independence, and the effect of angle of incidence for both TE and TM modes was also elucidated. It was also found that the multiple-reflection theory was not suitable for explaining the absorption mechanism of our investigated structures. The results of this study are promising for the practical applications. (C) 2013 Optical Society of America
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