Fahad Ayesha Kosar, Ruan Cunjun, Nazir Rabia, Hassan Bilal
School of Electronics and Information Engineering, Beihang University, Beijing 100191, China.
Beijing Key Laboratory for Microwave Sensing and Security Applications, Beihang University, Beijing 100191, China.
Nanomaterials (Basel). 2022 May 17;12(10):1705. doi: 10.3390/nano12101705.
Metasurfaces, a special class of metamaterials, have recently become a rapidly growing field, particularly for thin polarization converters. They can be fabricated using a simple fabrication process due to their smaller planar profile, both in the microwave and optical regimes. In this paper, the recent progress in MSs for linear polarization (LP) to circular polarization (CP) conversion in transmission mode is reviewed. Starting from history, modeling and the theory of MSs, uncontrollable single and multiple bands and LP-to-CP conversions, are discussed and analyzed. Moreover, detailed reconfigurable MS-based LP-to-CP converters are presented. Further, key findings on the state-of-the-arts are discussed and tabulated to give readers a quick overview. Finally, a conclusion is drawn by providing opinions on future developments in this growing research field.
超表面作为一种特殊类型的超材料，近来已成为一个快速发展的领域，特别是在薄型偏振转换器方面。由于其在微波和光学领域的平面轮廓较小，它们可以通过简单的制造工艺来制造。本文综述了超表面在传输模式下线性偏振（LP）到圆偏振（CP）转换方面的最新进展。从超表面的历史、建模和理论出发，讨论并分析了不可控的单波段和多波段以及LP到CP的转换。此外，还介绍了基于超表面的详细可重构LP到CP转换器。进一步地，对当前技术水平的关键发现进行了讨论并制成表格，以便让读者快速了解。最后，通过对这个不断发展的研究领域的未来发展提出看法得出结论。
