一种工作于太赫兹频段的石墨烯天线

发布时间：2018-07-25 17:07

【摘要】：为克服金属材料在太赫兹频段的工艺不足,利用石墨烯在该频段的特性,设计了一款工作于1.0 THz的石墨烯贴片天线。根据随机相位近似(RPA)的石墨烯表面电导率模型,研究了面电导率与频率(太赫兹波段)以及化学势的变化关系,确定了石墨烯材料的物理参数。该天线结构由石墨烯贴片,聚酰亚胺衬底和地板组成。利用HFSS软件优化,其尺寸仅为220μm×140μm×9μm。石墨烯贴片天线工作频段为0.98~1.02 THz,-10 d B相对阻抗带宽为4.0%,最大辐射方向上的增益达7.32 d B。此外,该天线具有尺寸小,轻便,机械性能稳定,结构简单且易集成的特点。
[Abstract]:A graphene patch antenna working at 1. 0 THz was designed to overcome the shortage of metal materials in terahertz band. Based on the surface conductivity model of graphene based on random phase approximation (RPA), the relationship between surface conductivity and frequency (terahertz band) and chemical potential is studied, and the physical parameters of graphene materials are determined. The antenna structure consists of graphene patch, polyimide substrate and floor. The size of the system is only 220 渭 m 脳 140 渭 m 脳 9 渭 m. The operating frequency range of graphene patch antenna is 0.98 ~ 1.02 THz-10 dB relative impedance bandwidth is 4.0 and the maximum radiation direction gain is 7.32 dB. In addition, the antenna has the advantages of small size, portable, stable mechanical performance, simple structure and easy integration.
【作者单位】：上海大学通信与信息工程学院;
【分类号】：TN826

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