李思佳,韩博文,黄国帅,等. 2比特激励编码超构表面的辐射与散射调控[J]. 电波科学学报,2021,36(6):925-931. DOI: 10.12265/j.cjors.2021111
      引用本文: 李思佳,韩博文,黄国帅,等. 2比特激励编码超构表面的辐射与散射调控[J]. 电波科学学报,2021,36(6):925-931. DOI: 10.12265/j.cjors.2021111
      LI S J, HAN B W, HUANG G S, et al. Two-bit coding-feeding metasurface with radiation and scattering manipulation[J]. Chinese journal of radio science,2021,36(6):925-931. (in Chinese). DOI: 10.12265/j.cjors.2021111
      Citation: LI S J, HAN B W, HUANG G S, et al. Two-bit coding-feeding metasurface with radiation and scattering manipulation[J]. Chinese journal of radio science,2021,36(6):925-931. (in Chinese). DOI: 10.12265/j.cjors.2021111

      2比特激励编码超构表面的辐射与散射调控

      Two-bit coding-feeding metasurface with radiation and scattering manipulation

      • 摘要: 超构表面(metasurface, MS)是当前电磁领域研究的热点和前沿,它能够有效调控电磁波. 2比特数字编码MS由于不同形态单元个数的增加,增强了散射和辐射控制的灵活性,为更好的隐身效果、更宽的带宽以及多功能的实现提供了可能. 文中将分形磁电偶极子天线结构和极化控制MS单元有机融合,先构建出激励MS单元,再通过结构变换和数字编码,提出了2比特可激励编码MS,并设计了拓扑结构. 仿真和实验验证了辐射与散射调控的多功能特征. 设计的2比特激励编码MS在天线雷达散射截面(radar cross section, RCS)减缩和未来无线通信系统领域具有潜在的应用价值.

         

        Abstract: Metasurface is a hotspot and frontier in the field of electromagnetic research, which can effectively regulate electromagnetic waves. Due to the increase of the number of units with different microstructures, the two-bit digital coding metasurface enhances the flexibility of scattering and radiation control, which makes it possible to achieve better stealth effect, wider bandwidth and multi-function. In this paper, the fractal magneto-electric dipole antenna structure and polarization metasurface unit are organically integrated to construct the unit of coding-feeding metasurface. Through the microstructure transformation and digital coding, a two-bit coding-feeding metasurface is proposed, and its topology is designed. The multi-functional characteristics of radiation and scattering manipulation are verified by simulation and experiment. The two-bit coding-feeding metasurface has potential application in radar cross section (RCS) reduction of antenna and wireless communication system in the future.

         

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