How calculate the simulated capacitance of coaxial

[sandruska]

How could I calculate the simulated Capacitance of a coaxial with HFSS?

I don't want to calculate the theoretical result. I want the capacitance obtained by HFSS (Approximated).

Thank's for all and Regards.

 

[borich_03]

It's very simple. You need to use in Report field a Output Variable the next type:
Cap=(-1/(2*pi*freq*im(Z(1,1))))*10^12.
For this Variable you can make a plot or a table.
The result's unit will in pF.
Good luck!

 

[sandruska]

It's very simple. You need to use in Report field a Output Variable the next type:
Cap=(-1/(2*pi*freq*im(Z(1,1))))*10^12.
For this Variable you can make a plot or a table.
The result's unit will in pF.
Good luck!

Please Help me!!!!
I don't get the theoretical value of the capacitance with that formule, why??

 

[borich_03]

It's very simple. You need to use in Report field a Output Variable the next type:
Cap=(-1/(2*pi*freq*im(Z(1,1))))*10^12.
For this Variable you can make a plot or a table.
The result's unit will in pF.
Good luck!

Please Help me!!!!
I don't get the theoretical value of the capacitance with that formule, why??

The formula is right. I checked simulation's results with numerical for different models and all was OK. I think: You've a model's mistake. Check boundarys, ports and use manual meshing. Also look at the Report's field. May be, you use wrong output conditions.