Metasurfaces have been studied intensively over the past two decades as they offer the advantages of extraordinary electromagnetic characteristics and highly dispersive responses. Furthermore, electrically or optically reconfigurable metasurfaces can dynamically switch their operation or provide diverse functions via control of their electromagnetic responses. Consequently, mechanical transformations of metasurfaces have paved the way for fabrication of physical sensors. Specifically, in this paper, we propose a stretchable metasurface for wireless strain sensor applications. Because of its dispersive characteristic, the proposed metasurface can reject a specific frequency while transmitting all other frequencies. When the metasurface is stretched, its rejection frequency is shifted. Therefore, the proposed metasurface can wirelessly sense the strain level. The stretchable metasurface is implemented by screen printing a stretchable conductor on a stretchable dielectric material. Further, the frequency response of the fabricated metasurface is measured by loading between the transmitting and receiving antennas. The measured modulus of the fabricated sample is 2.07 MPa for a maximum strain of 15%, and its measured sensitivity is 0.085$\times$10⁹ Hz/%.

在过去的二十年中，超颖表面已经得到了深入的研究，因为它们具有非凡的电磁特性和高度分散的响应的优势。此外，电或光学可重配置的超表面可以通过控制其电磁响应来动态切换其操作或提供多种功能。因此，超表面的机械转变为物理传感器的制造铺平了道路。具体而言，在本文中，我们提出了一种用于无线应变传感器应用的可拉伸超颖表面。由于其色散特性，建议的超颖表面可以在传输所有其他频率的同时拒绝特定频率。当超颖表面被拉伸时，其排斥频率会发生变化。因此，建议的超颖表面可以无线感应应变水平。通过在可拉伸的介电材料上丝网印刷可拉伸的导体来实现可拉伸的超表面。此外，通过发射和接收天线之间的负载来测量所制造的超颖表面的频率响应。在最大应变为15％的情况下，制成的样品的测得模量为2.07 MPa，测得的灵敏度为0.085$\times$10 ⁹ Hz /％。