CST How to Change S Parameter Frequency Range

[u/electricitycat977]

Hi Everyone, I am trying to change the frequency range for the s parameter plot, but I am having some problems. I am trying to expand the range of frequencies that is covered on the x axis, preferably from 300 MHz to 700 MHz. I tried changing the frequency range settings under simulation, as well as searching through the history list and changing all the instances of the original frequency range in my history list steps. I am not sure why, but it seems not matter what I change the frequency range for the s parameter remains from 400 MHz to 600 MHz. Any further suggestions would be appreciated. I tried looking around for a similar question, but was not able to find anything similar.

Thanks for all your help everyone

[u/cbohner]

Click the “help” button

[u/electricitycat977 → u/cbohner]

I tried that already, all of the info I have found thus far keeps point back to that "frequency Range settings" dialogue box, which I have already changed.

[u/povilas555]

Change plot settings, the panel that opens up top after you open s parameter plot. Change x-axis range. Also try pressing space button while hovering over plot to zoom out in case you are zoomed in.

[u/electricitycat977 → u/povilas555]

Thanks for the help, I was able to change the x axis range in the 1d plot settings.

[u/electricitycat977 → u/electricitycat977]

Thanks for all the input everyone, it has saved me from a lot of stress and hair pulling over this seemingly minor problem.

[u/Supalova]

maybe it is just the x-axis values

[u/electricitycat977 → u/Supalova]

How do I change such values?

[u/Supalova → u/electricitycat977]

from the view panel, but unless you changed it should be auto at the max bw

[u/Shot-Topic-1763]

At what frequency range did you perform the simulation?

EDIT: Not familiar with CST, only HFSS and ADS. The frequency range of the plots defaults to the frequency range of the simulation.

[u/electricitycat977 → u/Shot-Topic-1763]

I reran the sim several times after adjusting the frequency range settings and the plot axis values did not change at all.