Impedance vs Freq (EMC menu)

The software uses a specific probe called "Z probe" that can be found in the probe menu, close to the voltage probe. The Z probe is inserted between the two electrical nodes where the impedance needs to be measured. A ground should always exist in the schematic diagram in order to avoid instability. An AC simulation is performed with an AC source at the Z probe location. The ratio between the voltage and current is computed from 10MHz to 10GHz. The result is plotted as shown below.

We compare here measurements from [S] parameters with impedance simulations. The conversion procedure in IC-Emit uses [s] to [z] conversion equations given in the appendix of IC-Emit documentation.

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