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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Water-injected all-dielectric ultra-wideband and prominent oblique incidence metamaterial absorber in microwave regime
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Water-injected all-dielectric ultra-wideband and prominent oblique incidence metamaterial absorber in microwave regime

机译：微波制度中的水注入的全电介质超宽带和突出的倾斜发射超材料吸收器

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摘要

We present a water-injected all-dielectric metamaterial that can offer an extremely wide bandwidth of electromagnetic absorption and prominent wide incident angle range. Different from conventional metal-dielectric based metamaterial absorbers, the absorption mechanism of the proposed all-dielectric metamaterial absorber is to take advantage of the dispersion of water, rather than electric or/and magnetic resonance, which thoroughly overcomes the defects of narrow bandwidth and oblique incidence from metal-dielectric based metamaterial absorber. The simulated absorption was over 90% in 8.1-22.9 GHz with the relative bandwidth of 95.5% when the incident angle reaches 60 degrees, and the corresponding microwave experiment is performed to support the simulations. The obtained excellent absorption performance reveals a possible application of the proposed absorber, which can be exploited for electromagnetic stealth purposes, especially for electromagnetic stealth of sea targets.
机译：我们提出了一种水注入的全电介质超材料，可以提供极宽的电磁吸收带宽和突出的宽入射角范围。 不同于传统的金属介电基代材料吸收器，所提出的全介电超材料吸收器的吸收机理是利用水的分散，而不是电动或/和磁共振，这彻底克服了窄带宽和倾斜的缺陷 基于金属介电的超材料吸收器的入射。 当入射角达到60度时，在8.1-22.9GHz中，模拟吸收量超过90％，相对带宽为95.5％，并进行相应的微波实验以支持模拟。 所获得的优异吸收性能揭示了所提出的吸收器的可能施加，这可以用于电磁隐身目的，特别是对于海靶的电磁隐藏。

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