A Reconfigurable Multifunctional Metasurface for Full-Space Control of Electromagnetic Waves,Advanced Functional Materials

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A Reconfigurable Multifunctional Metasurface for Full-Space Control of Electromagnetic Waves
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2021-04-10 , DOI: 10.1002/adfm.202100275
Hai Lin Wang ₁ , Hui Feng Ma ₁ , Mao Chen ₁ , Shi Sun ₁ , Tie Jun Cui ₁

Affiliation

Metasurfaces have attracted much attention in recent years due to their powerful abilities in manipulating electromagnetic (EM) waves. However, most of the previously reported metasurfaces are incapable of real-time control of full-space EM waves, including transmission, reflection, and absorption at the same time. In this paper, a reconfigurable multifunctional metasurface is proposed that demonstrates real-time control of transmission, absorption, and reflection of EM waves, which can be continuously controlled from total transmission to total reflection, and to perfect absorption. In the case of total reflection, the reflected waves can be further manipulated in a programmable way by changing the digital coding sequences via bias voltages. Meanwhile, the metasurface can independently control vertical and horizontal polarized waves in broadband. The reconfigurable functionalities of the metasurface are validated by experiments, which agree very well with numerical simulations. In addition, a potential application of the reconfigurable multifunctional metasurface in a stealth radome is proposed and demonstrated.

中文翻译：

用于电磁波全空间控制的可重构多功能超表面

近年来，超表面因其在操纵电磁（EM）波方面的强大能力而备受关注。然而，之前报道的大多数超表面都无法实时控制全空间电磁波，包括同时传输、反射和吸收。在本文中，提出了一种可重构的多功能超表面，它展示了对 EM 波的透射、吸收和反射的实时控制，可以从全透射到全反射，再到完美吸收进行连续控制。在全反射的情况下，可以通过偏置电压改变数字编码序列，以可编程方式进一步操纵反射波。同时，超表面可以独立控制宽带中的垂直和水平极化波。通过实验验证了超表面的可重构功能，这与数值模拟非常吻合。此外，提出并证明了可重构多功能超表面在隐形天线罩中的潜在应用。

更新日期：2021-06-18

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