HFSS中如何显示输入阻抗的smith圆图，以判断天线圆极化特性
来源：edatop
更新时间：2024-09-16
阅读：
查看天线圆极化的常用方法是看远场最大辐射方向的轴比AR，一般认为AR<=3dB就认为是圆极化，但是利用HFSS仿真Frequency-AR曲线输出特别慢。
在《Broadband microstrip antennas》一书中看到可以利用查看天线的输入阻抗圆图来判断其是否产生圆极化波，原文为：Another way to recognize whether the given dimensions are optimum for the best AR is to look at the impedance plot of the antenna. If there is a kink (extremely small loop) in the impedance plot corresponding to the excitation of the two orthogonal modes, it will yield the best AR at the kink frequency. Instead of a kink, a small loop or the absence of the loop in the impedance plot yields poor AR.
是画s参数，不是z
以前没有看smith 图学习啦
学习啦！很有收获！
學習中啦！很有收获呢！
