采用有限元法对频率选择表面进行分析，研究Ansoft HFSS软件用于频率选择表面仿真的可行性。以六边形单元频率选择表 面为实例探索Ansoft HFSS软件仿真频率选择表面的方法及过程。采用光刻技术制作出六边形单元频率选择表面样片。通过对仿真曲线和样片实测曲线 的对比，证明Ansoft HFSS软件用于频率选择表面仿真的方法是正确的。同时，通过圆环和十字单元结构的实例，进一步验证了其仿真的可靠性。软 件仿真中同时考虑了频率选择表面的频域特性和时域特性，而用传统的计算方法设计的频率选择表面只能考虑其中的一种特性，因此该仿真设计方法更准确。

Frequency selective surfaces were analyzed by using a finite element method and the feasibility of simulating frequency selective surfaces by an Ansoft HFSS software was studied. By taking the frequency selective surfaces of a hexagon cell for example, the simulation method and process of the frequency selective surfaces were explored. A hexagon cell sample with frequency selective surfaces was fabricated by using a photolithography technology. The simulation curves were compared with the measured curves of the sample. The result showed that simulating the frequency selective surfaces by using the Ansoft HFSS was feasible. At the same time, the reliability of the simulation was further verified in the cirle and cross cell structure examples. In this simulation, both time domain characteristics and frequency domain characteristics of the frequency selective surfaces were considered. In contrast, either time domain characteristics or frequency domain characteristics could be considered in the traditional method. So, this simultaion method was more accurate.