HFSS create setup based on the values from plots

[ancan9360]

Hi, is there anyway to create a setup from the for example Modal Solution Data ? I simulated my branchline coupler (used full licence) with the interpolating setup where the center is 3.75GHz after the simulation I saw that S11 get its minimum value at 3.9GHz (used x marker). Now I want to create a new setup where its center is 3.9GHz but I don't want to put the value manually. I clicked on the marker to see some "create setup from marker" etc. but I did not see. Can you help ?

[Chinmay T]

Hello,

It is not possible to create setup manually in AEDT GUI using Modal Solution Data Reports. However, you can achieve this by using PyAEDT to create setup through coding.

Thanks,
Chinmay

[ancan9360]

Hello, thanks for reply. When I use pyaedt I can do it but I wondered is there any chances to do it in the HFSS.

But I have an another question if you don't mind. I created a branchline coupler and I got the phase differences between outputs around 89 degree. Then I cascaded two branchline coupler to get Crossover structure in theory it says that I should get 90 degree phase differences between corresponding outputs and inputs (S31 and S24). But in the HFSS I got 95 degree. Then I was calculating the S matrix by hand with the simulation results normally I should get around 90 degree but simulation doesn't give that results.

Also in the Butler matrix I get the phase differences between the outputs and inputs 20 degrees higher than normal. For example coupler give 90 degree then line give 50 degree then again coupler again line so totally 280 degree right ? But no it gives 300-305 degree etc. and it is valid for every input-output port. My design is "Modal Network" and I use "Lumped Port" (I tried wave port but the results were same). 

So my question is this : When I cascaded structures is this behaviour normal ? I mean in terms of S21 dB I can add them each other and I get the nearly perfect results but in terms of degree I can't add them. I did theoritical calculation with "S matrix of cascaded system" but again I should get the normal degree or lets say difference is max 5 degree. Do you have any idea ?