Changes

{{Note | S-parameter-based RF devices do not work with “Live Simulation” or Transient Test as their models typically contain S-[[parameters]] at high frequencies only.}}

The RF circuit analysis performed by [[RF.Spice A/D]] is based on the assumption that your distributed RF circuit can be modeled as an interconnected network of multiport devices and transmission line segments and components. This means that all the coupling or crosstalk effects must have been captured by the S-parameter-based models of devices or by the transmission line and discontinuity models used by [[RF.Spice A/D]]. Most of these models work satisfactorily at lower frequencies up to several Gigahertz. At these frequencies, a quasi-static regime may be able to represent the physics of your RF circuit to a good level of accuracy. In the quasi-static regime, the different parts of your circuits can be treated as multiport devices or components that are governed by the Kirchhoff circuit laws.