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Series or shunt mode for s parameters of capacitor

- October 31, 2024 at 12:07 pm
  
  derun.karabeyoglu
  Subscriber
  
  Hi, I am using Ansys SIwave to simulate impedance of power plane on a PCB (PDN). There are lots of capacitors connected to that plane typically. I uploaded s parameters file of each capacitors in shunt mode. When I run syz parameter simulation, I saw in the message tab that Siwave converts those s parameters file from shunt mode to series mode. Why? Then should I upload s parameter files which is created for series mode? It is possible for some capacitor manufacturers.
- November 7, 2024 at 11:03 am
  
  Mrinmoy Bharadwaj
  Ansys Employee
  
  You may keep the import in series mode and continue your simulations.

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