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Two-dimensional QR-coded metamaterial absorber

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Abstract

In this paper, the design of metamaterial absorbers is proposed based on QR coding and topology optimization. Such absorbers look like QR codes and can be recognized by decoding softwares as well as mobile phones. To verify the design, two lightweight wideband absorbers are designed, which can achieve wideband absorption above 90 % in 6.68–19.30 and 7.00–19.70 GHz, respectively. More importantly, polarization-independent absorption over 90 % can be maintained under incident angle within 55°. The QR code absorber not only can achieve wideband absorption, but also can carry information such as texts and Web sites. They are of important values in applications such identification and electromagnetic protection.

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Acknowledgments

The authors are grateful to the support from the National Natural Science Foundation of China (Grants Nos. 61331005, 11274389, 61471388, 61501497, 61501502), the Innovation team of Shaanxi Province, China (Grant No. 2014KCT-05), and the Foundation for the Author of National Excellent Doctoral Dissertation of PR China (FANEDD) (Grant No. 201242).

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Authors and Affiliations

  1. College of Science, Air Force Engineering University, Xi’an, 710051, Shaanxi, China

    Sai Sui, Hua Ma, Jiafu Wang, Jieqiu Zhang & Shaobo Qu

  2. Electronic Materials Research Laboratory, Key Laboratory of the Ministry of Education Xi’an Jiaotong University, Xi’an, 710049, Shaanxi, China

    Yongqiang Pang

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  1. Sai Sui
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  2. Hua Ma
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  3. Jiafu Wang
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  4. Yongqiang Pang
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  5. Jieqiu Zhang
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Correspondence to Sai Sui.

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Sui, S., Ma, H., Wang, J. et al. Two-dimensional QR-coded metamaterial absorber. Appl. Phys. A 122, 28 (2016). https://doi.org/10.1007/s00339-015-9545-x

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  • DOI: https://doi.org/10.1007/s00339-015-9545-x

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