HFSS - Please help me plot a graph with different traces for a swept parameter.

[DeboraHarry]

I want to plot the Gain (dBi) vs Frequency (GHz) of an antenna on a 2D graph using:

HFSS -> Results -> Create Far Field Report -> Rectangular Plot

but have a different trace for each variation of a parameter which was swept using

HFSS -> Optimetrics Analysis -> Add Parametric

I have used a Discrete frequency sweep. Since there are two values (210 mm and 220 mm) of the parameter I called 'start_position1', I want two traces. However, there is only one trace as shown. (I've attached the .hfss file, in case it helps. I made various changes from my original file to make it run faster. It should only take 10 minutes or so to run - a lot less if you have a DSO license).



I want to plot the graph with:

• Phi=0°
• start_position1 (my parametric variable) = 210 mm and 220 mm
• Theta=90°

But as you can see above, it is only plotting Θ=90°, Φ=0° , start_position1=210 mm, and not showing a trace with Θ=90°, Φ=0° , start_position1=220 mm, (The value of start_position1 is defined as 210 mm in the model, but of course I want to sweep that value using the Optimetrics)

Here's my Parametric Sweep setup, using HFSS -> Optimetrics Analysis -> Add Parametric The simulation runs OK, with no warnings.



Here's how I have tried to plot the gain vs frequency, with HFSS -> Results -> Create Far Field Report -> Rectangular Plot



Here is the "Families Tab" of HFSS -> Results -> Create Far Field Report -> Rectangular Plot . Note this shows two values for start_position1.



I'm not sure what (if anything) I should expect on the Families Display tab of HFSS -> Results -> Create Far Field Report -> Rectangular Plot , but I see nothing at all.

Can anyone suggest how I might show two traces? I'd appreciate it very much.


Deborah.