A dual-band polarization reconfigurable terahertz antenna is proposed by incorporating a monopole antenna with a graphene-based dual-band active polarization converter metasurface (APCM). The APCM unit cell adopts two perpendicular slots on the top and two biased graphene patches on the bottom, which can be switched from ON (polarization conversion) to OFF (polarization maintain) in dual-band by adjusting the chemical potentials of graphene from 0 to 0.5 eV. By loading the APCM array under the monopole antenna, the dual-band polarization reconfigurable THz antenna achieves four working states including dual linear polarizations and dual circular polarizations.

中文翻译：

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基于石墨烯的双频双极化可重构太赫兹天线

通过将单极天线与基于石墨烯的双频有源极化转换器超颖表面（APCM）结合在一起，提出了一种双频极化可重构太赫兹天线。APCM单元电池在顶部采用两个垂直槽，在底部采用两个偏置的石墨烯贴片，可以通过将石墨烯的化学势从0调整为2来从双波段的ON（极化转换）切换到OFF（维持极化）。 0.5 eV。通过将APCM阵列加载到单极天线下方，双波段极化可重配置THz天线可达到四个工作状态，包括双重线性极化和双重圆极化。