完成模型、激励端口等等设置之后
macros-->solver-->monitors and probes-->broadband field monitors
设置farfield/rcs 频点,下面以0.6GHz为步进间隔为例,仿真完成以后可以看到远场结果
大概浏览下axial ratio的3d结果,查看辐射方向轴比是否满足预期
点击farfield result
选择max gain over frequency
按图设置参数(目的就是在3d范围内,用最小轴比值绘制vs频率的曲线),点击ok。(注意plot mode默认设置就好)
选中需要计算的模板,点击evaluate
观察轴比vs频率的曲线图
cst帮助文档--关于轴比
SetPlotMode specifies the mode for the farfield plot. GetPlotMode returns the currently set plot mode.
plotMode can have one of the following values:
"directivity" | The directivity is plotted in the farfield plot. |
"gain" | The gain is plotted in the farfield plot. |
"realized gain" | The realized gain is plotted in the farfield plot. |
"efield" | The electric field is plotted in the farfield plot. |
"epattern" | The electric field pattern is plotted in the farfield plot. |
"hfield" | The magnetic field is plotted in the farfield plot. |
"pfield" | The power flow is plotted in the farfield plot. |
"rcs" | The radar cross section (square meters) is plotted in the farfield plot. |
"rcsunits" | The radar cross section (project length units squared) is plotted in the farfield plot. |
"rcssw" | The radar cross section (square wavelength) is plotted in the farfield plot. |
SelectComponent ( enum fieldComponent )
Changes the currently plotted field component. fieldComponent specifies the desired component as it appears in the tree/ribbon, e.g., "Abs", "Phi/Theta", "Axial Ratio", ...
SetInverseAxialRatio ( bool bFlag )
If activated the inverse IEEE axial ratio is plotted.
farfield result中如果没有直接的模板,可以选择相近的进行设置。