Abstract. This paper presents a beam reconfigurable graphene-based Yagi–Uda antenna consisting of five iterations of the driven elements. These iterations are aligned with each other at different angles. Each iteration of the antenna can be individually biased for controlling the chemical potential. Thus, chemical potential can be effectively controlled using the external biasing to use a single iteration at a time, and the others are maintained at zero potential. The antenna provides the resonant frequency at 7.83 THz for each iteration due to similar aspect ratio. However, the radiation pattern of the antenna can be reconfigured depending upon the alignment at particular angle. This provides the beam reconfiguration in the antenna with the deflection ranging from −65 ° to 65° using different iterations. The antenna with the proposed dimensions excites the higher-order TM14 mode inside the driven element. In addition, the resonant frequency of the antenna can be tuned by varying the physical parameters of driven elements.

中文翻译：

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具有用于太赫兹应用的高阶 TM 模式生成的基于波束可重构石墨烯的 Yagi-Uda 天线

摘要。本文提出了一种基于波束可重构石墨烯的 Yagi-Uda 天线，由五个迭代的驱动元件组成。这些迭代以不同的角度相互对齐。天线的每次迭代都可以单独偏置以控制化学势。因此，使用外部偏置可以有效地控制化学势，一次使用一次迭代，而其他的则保持在零电位。由于类似的纵横比，天线为每次迭代提供 7.83 THz 的谐振频率。然而，天线的辐射图可以根据特定角度的对准重新配置。这提供了天线中的波束重新配置，使用不同的迭代，偏转范围从 -65° 到 65°。具有建议尺寸的天线激发驱动元件内的高阶 TM14 模式。此外，可以通过改变驱动元件的物理参数来调整天线的谐振频率。