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Recent content by ronic

  1. R

    S parameters at very low frequencies

    Unfortunately, I already use Sigrity as the PowerSI tool is integrated into it... but I'm not an expert of it. I tried to change several options and there is even a DC fitter that I use to calculate a DC response for the PCB and to change the S parameters simulation according to its results...
  2. R

    S parameters at very low frequencies

    Hello Volker, thank you for your answer. your explanation makes sense. as I would like to extract an electronic model to import into some spice simulator, I would prefer to have a correct DC model if I want to do some time simulations. I will try to load the raw S parameters and "correct"...
  3. R

    S parameters at very low frequencies

    Hello Volker, thank you for your interest. maybe I'm wrong but I would say that all Sij parameters should have a quasi-DC phase at 0. here is a schematic of the board with its 12 ports, the Sii parameters with a phase at 0 in DC, and the Sij (with i different than j) parameters which have a...
  4. R

    S parameters at very low frequencies

    Hello, I use the Cadence PowerSI Model Extraction tool to get the S-parameters of a small and simple PCB. this PCB is roughly a simple wire connecting 1 input connector to 1 output connector for 6 channels (then 12 connectors in total). this PCB is about 15cm x 10cm large. I'm surprised that...

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