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How to calculate capacitance using Fields Calculator in HFSS?

- August 27, 2024 at 12:35 am
  
  Stefano R
  Subscriber
  
  I have an Interdigital capacitor in my model. There are other components in the geometry but I am only interested in the capacitance region. How can I use the solved Electric Fields and the Fields calculator to solve for capacitance in this region?
- August 27, 2024 at 8:15 pm
  
  Stefano R
  Subscriber
  
  I found some Capacitance values for this structure using Q3D but HFSS is giving completely different results, so I want to find the capacitance from the HFSS fields. I can do C = Q/V with V= Line integral of the Electric field and Q as the Abs_Q value in the fields calculator. But I am unsure if this is the correct approach.
- August 27, 2024 at 8:15 pm
  
  Stefano R
  Subscriber
  
  I found some Capacitance values for this structure using Q3D but HFSS is giving completely different results, so I want to find the capacitance from the HFSS fields. I can do C = Q/V with V= Line integral of the Electric field and Q as the Abs_Q value in the fields calculator. But I am unsure if this is the correct approach.
- September 16, 2024 at 1:55 pm
  
  Aymen Mzoughi
  Ansys Employee
  
  Q3D is the tool to use for this case

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