CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Analysis of frequency selective surface absorbers via a novel equivalent circuit method |
Liu Li-Guo (刘立国), Wu Wei-Wei (吴微微), Mo Jin-Jun (莫锦军), Fu Yun-Qi (付云起), Yuan Nai-Chang (袁乃昌) |
College of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China |
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Abstract An equivalent circuit (EC) method for absorbers design is proposed in this paper. Without using full-wave analysis, the EC method can predict the performance of the absorbers. This method is employed to synthesize broadband absorbers by inserting the resistors respectively into the single- and double-square loops structures, then two different prototypes with broadband absorbing frequency bands are manufactured and measured. By comparisons with the results both by using the full-wave analysis and by the measurements, the correctness of the new EC method is verified. Some factors which affect the absorbing bandwidth are also investigated. Due to its fast and accurate characteristics, the EC method which can be theoretically applied to arbitrary FSS is a good candidate for broadband design of the absorbers.
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Received: 07 October 2012
Revised: 02 December 2012
Accepted manuscript online:
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PACS:
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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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Fund: Project supported by the Science Foundation for New Century Excellent Talents in University of China (Grant No. NCET-10-0894). |
Corresponding Authors:
Liu Li-Guo
E-mail: liguoliu99@gmail.com
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Cite this article:
Liu Li-Guo (刘立国), Wu Wei-Wei (吴微微), Mo Jin-Jun (莫锦军), Fu Yun-Qi (付云起), Yuan Nai-Chang (袁乃昌) Analysis of frequency selective surface absorbers via a novel equivalent circuit method 2013 Chin. Phys. B 22 047802
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