Changes

At the heart of RF.Spice lie the concepts of [[Multiport Networks|multiport networks]] and RF [[Transmission Lines|transmission lines]]. From a simulation point of view, an RF circuit is made up of a collection of [[Multiport Networks|multiport networks]] that are interconnected via RF [[Transmission Lines|transmission lines]]. If the input of your circuit is connected to a source and its output is connected to a load, then you can compute all the voltages and currents at all the external or internal ports of the circuit (i.e. at the various circuit nodes). Or you can calculated calculate the port characteristics of the overall network by specifying input and output ports.