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Pixelated bicontrollable metasurface absorber tunable in complete X band

Author

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  • Govindam Sharma
  • Pankaj Kumar
  • Akhlesh Lakhtakia
  • Pradip Kumar Jain

Abstract

A pixelated bicontrollable metasurface tunable in the complete X band was designed with its meta-atoms comprising yttrium iron garnet (YIG)-patched pixels and conductive rubber (CR)-patched pixels on a metal-backed silicon substrate. Maximum absorptance of a normally incident plane wave greater than 0.99 is achievable and tunability with absorptance exceeding 0.9 is realizable, with the help of an external magnetostatic field and temperature. The YIG-patched pixels provide magnetostatic control modality with sensitivity of $ 0.04\,{\rm MHz}\,{\rm A}^{-1}\,{\rm m} $ 0.04MHzA−1m and the CR-patched pixels provide thermal control modality with sensitivity of $ 1\,{\rm MHz}\,{\rm K}^{-1} $ 1MHzK−1. The proposed metasurface absorber can be used to improve the performance of weather radar, police speed radar, and direct broadcast television.

Suggested Citation

  • Govindam Sharma & Pankaj Kumar & Akhlesh Lakhtakia & Pradip Kumar Jain, 2022. "Pixelated bicontrollable metasurface absorber tunable in complete X band," Journal of Electromagnetic Waves and Applications, Taylor & Francis Journals, vol. 36(17), pages 2505-2518, November.
    • Handle: RePEc:taf:tewaxx:v:36:y:2022:i:17:p:2505-2518
    DOI: 10.1080/09205071.2022.2092037
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