In this article, a coding optimized metasurface is proposed for linear polarization conversion in broadband and wide‐angle. Using an improved coding method, the geometry of the metallic structure and the size of the unit cell are encoded with a code sequence. The code sequence is optimized by genetic algorithm, considering bandwidth, efficiency, and angular stability. In this way, a coding optimized metasurface was obtained for polarization conversion in broadband and wide‐angle. It can convert linear polarized incidence to its orthogonal polarized reflection in 8 to 18.9 GHz and 0° to 45°, with the polarization conversion ratio larger than 80%. Both simulated and measured results demonstrated the effectiveness of the proposed metasurface. Hence, our method offers an effective strategy to design high‐performance polarization conversion metasurfaces.

中文翻译：

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宽带和广角中编码优化的偏振转换超表面

本文提出了一种编码优化的超颖表面，用于宽带和广角中的线性极化转换。使用改进的编码方法，金属结构的几何形状和单位晶胞的尺寸以编码序列编码。考虑到带宽，效率和角度稳定性，通过遗传算法对代码序列进行了优化。通过这种方式，获得了编码优化的超表面，用于宽带和广角中的偏振转换。它可以在8至18.9 GHz和0°至45°的范围内将线性偏振入射转换为其正交偏振反射，并且偏振转换率大于80％。模拟和测量结果都证明了所提出的超颖表面的有效性。因此，