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Negative C lumped model Hyperlynx3D EM

Question asked by ruscino on Aug 26, 2014
Latest reply on Sep 9, 2014 by ruscino

Dear Sirs, I drawed a structure with 6 capacitors (see file MultiCap.png in attach, please).

After simulation (@ 10 Mhz, 500 Mhz and 1 Ghz), I select N-port PI Network with shunt RC in Lumped  Model.

I notice that some capacitance values (even if they are very small) are negative.

What that means?

Thanks a lot for your support.