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RETRACTED ARTICLE: Facile design of an ultra-thin broadband metamaterial absorber for C-band applications
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RETRACTED ARTICLE: Facile design of an ultra-thin broadband metamaterial absorber for C-band applications
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Journal Article
RETRACTED ARTICLE: Facile design of an ultra-thin broadband metamaterial absorber for C-band applications
2019
Overview
We report a facile design of an ultra-thin broadband metamaterial absorber (MA) for C-band applications by utilizing a single layer of a metal-dielectric-metal structure of FR-4 substrate. The absorption performances are characterized using a numerical method. The proposed MA exhibits the broadband absorption response over the entire C-band spectrum range from 4.0 GHz to 8.0 GHz with absorptivity above 90% and the high absorptivity is remained over 80% for a large incident angle up to 40° under both transverse electric (TE) and transverse magnetic (TM) polarizations over the band. The origin of absorption mechanism is explained by the electric and surface current distributions, which is also supported by the retrieved constitutive electromagnetic parameters, significantly affected by magnetic resonance. In addition, compared with the previous reports, the proposed MA presents a greater practical feasibility in term of low-profile and wide incident angle insensitivity, suggesting that the proposed absorber is a promising candidate for C-band applications.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
