Water‐Resonator‐Based Metasurface: An Ultrabroadband and Near‐Unity Absorption
Abstract
Metasurface absorbing material, which obtains near‐unity electromagnetic absorption through subwavelength artificial structure, plays an important role in the area of stealth and shielding technology, biological imaging, etc. However, they usually suffer from narrow bandwidth and only work on planar surfaces. Here, for the first time, this study demonstrates a soft water‐resonator‐based metasurface, which functions as an active absorbing material across an ultrabroadband range of Ku, K, and Ka bands. Distinct from conventional metallic metasurface, the water‐resonator‐based metasurface absorbs the microwave by dielectric magnetic resonance and periodic grating effect, which has a perfect absorptivity of ≈99% and an absorption bandwidth (absorptivity higher than 90%) that covers 78.9% of the central frequency. Furthermore, near‐unity absorption is maintained when the soft metasurface material is bent into different curvatures, promising high potential applications for antennas in reducing side lobe radiation, eliminating wall reflection in anechoic chambers, antiradar detection, and stealth.
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Song et al. [126] developed a soft, water-resonator-based FIM that functions as an active absorber across Ku, K, and Ka bands, achieving near-perfect absorption of 99% even when bent into different curvatures.
“Furthermore, Song et al. [126] developed a soft, water-resonator-based FIM that functions as an active absorber across Ku , K , and Ka bands, achieving nearperfect absorption of 99 % even when the FIM is bent into different curvatures.”
From Emerging Technologies in Intelligent Metasurfaces: Shaping the Future of Wireless Communications (2026) · cites this paper as [126]
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Emerging Technologies in Intelligent Metasurfaces: Shaping the Future of Wireless Communications
An, J., Debbah, M., Cui, T. J., Chen, Z. N., & Yuen, C. (2026) · IEEE Transactions on Antennas and Propagation · doi:10.1109/tap.2025.3571069 · Cited by 72 · see citing works
“Furthermore, Song et al. [126] developed a soft, water-resonator-based FIM that functions as an active absorber across Ku, K, and Ka bands, achieving near-perfect absorption of 99% even when the FIM is bent into di ff erent curvatures.”
Emerging Technologies in Intelligent Metasurfaces: Shaping the Future of Wireless Communications
An, J., Debbah, M., Cui, T. J., Chen, Z. N., & Yuen, C. (2024) · arXiv · Cited by 72 · see citing works
“Furthermore, Song et al. [126] developed a soft, water-resonator-based FIM that functions as an active absorber across Ku, K, and Ka bands, achieving near-perfect absorption of 99% even when the FIM is bent into di ff erent curvatures.”
- Authors
- Song, Q., Zhang, W., Wu, P. C., Zhu, W., Shen, Z. X., Chong, P. H. J., Liang, Q. X., Yang, Z. C., Hao, Y. L., Cai, H., Zhou, H. F., Gu, Y., Lo, G., Tsai, D. P., Bourouina, T., Leprince‐Wang, Y., & Liu, A.
- Affiliations
- Nanyang Technological University (SG)
- Harvard University (US)
- Singapore Institute of Manufacturing Technology (SG)
- Auckland University of Technology (NZ)
- Xi'an Jiaotong University (CN)
- Peking University (CN)
- National Key Laboratory of Science and Technology on Micro/Nano Fabrication Institute of Microelectronics Peking University Beijing 100871 China
- Agency for Science, Technology and Research (SG)
- Research Center for Applied Science, Academia Sinica (TW)
- Laboratoire d'électronique, systèmes de communication et microsystèmes (FR)
- Corresponding author
- Leprince‐Wang, Yamin
- Liu, Ai‐Qun
- ORCID
- Venue
- Advanced Optical Materials
- Publisher
- Wiley
- Published
- 2017-03-21
- Volume
- 5
- Issue
- 8
- ISSN
- 2195-1071 (ISSN-L)
- OpenAlex
- W2600382995
- Cited by
- 156
- References
- 0
- Citations by year
- 2026: 9 · 2025: 13 · 2024: 22 · 2023: 17 · 2022: 20 · 2021: 15 · 2020: 16 · 2019: 22 · 2018: 18 · 2017: 4
- FWCI
- 5.57
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Advanced Optical Materials (publishedVersion)
- HAL (submittedVersion)
- DR-NTU (Nanyang Technological University) (submittedVersion)
- Funders
- National Research Foundation Singapore
- Ministry of Education - Singapore (RG89/13)
- Economic Development Board - Singapore (NRF2014SAS‐SRP001‐059)
- Topics
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Metamaterials and Metasurfaces Applications
- Physical Sciences › Engineering › Aerospace Engineering › Advanced Antenna and Metasurface Technologies
- Physical Sciences › Materials Science › Electronic, Optical and Magnetic Materials › Electromagnetic wave absorption materials
- Keywords
- microwave absorbing materials, ultrabroadband absorption, periodic gratings, radar stealth, side lobe reduction
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