【作者】 杨沛东； 刘晓波； 张安学； 陈晓明；

【Author】 Peidong Yang;Xiaobo Liu;Anxue Zhang;Xiaoming Chen;Xi’an Jiaotong University;

【机构】 西安交通大学；

【摘要】 本文提出了一种反射型线-圆极化转换超表面的解析设计方法。该理论基于传输线理论、变分法和等效电路模型,将超表面的线-圆极化转换系数与超表面单元的的几何参数关联。通过使用理论分析所得的解析模型,设计出了两种不同性能的线-圆极化转换超表面并与商用仿真软件CST的仿真结果进行对比。不出所料,所设计的两个线-圆极化转换超表面都准确地实现了其预设性能,并且计算结果与仿真结果吻合较好。因此,该方法为指导反射型线-圆极化转换超表面的设计提供了重要的理论途径,可以加快设计过程,并深入了解其物理机理。更多还原

【Abstract】 In this paper, a method of analysis and design of metasurface for reflective linear-to-circular polarization conversion is presented. Based on transmission line theory,variational method and equivalent circuit model, the linear-to-circular polarization conversion coefficient of the metasurface is associated with the geometric parameters of the metasurface element. By using the analytical model obtained from theoretical analysis, two kinds of linear polarization conversion metasurfaces with different properties are designed and compared with the simulation results of commercial simulation software CST. As expected, the two designed metasurfaces achieve their preset performance accurately, and the calculation results are in good agreement with the simulation results. Therefore, this method provides an important theoretical approach to guide the design of the reflective linear-to-circular polarization conversion metasurface, which can speed up the design process and deeply reveal its physical mechanism.更多还原