Loads and Non-Radiating Networks
Complex feed networks can be simplified by including them as a circuit representation using general network blocks.
Non-radiating networks operate on the principle of connecting networks or “black boxes” using a connection diagram. The benefit of this scheme is that only a single connection is drawn between black boxes. However, it may seem less intuitive when working with, for example, S-parameters or Z-parameters, as graphical representations of these always show a signal pin and a ground pin.
Non-radiating networks are connected to, for example, wire ports in the geometry and these networks are implicitly seen as being in series with the wire segment.