help me about waveguide simulation with HFSS

[Montada21343]

how to find waveguide cutoff from HFSS please?

---------- Post added at 15:34 ---------- Previous post was at 15:28 ----------

 

[oh1]

a waveguide is a high pas filter. So, if you look to check for its cutoff frequency, you do the simulation on a larger frequency bandwidth and when looking at scattering parameters, you will see when it cuttoff

 

[Montada21343]

oh1​

yes but i would look for data
how i find data of waveguide cutoff

 

[sv1437]

Look for the scattering parameters S21 and S11. Since it is a high-pass filter, after the cutoff frequency your S21 should be close to 0dB and S11 should be around -30 dB.