== Understanding RF Circuit Analysis as an Analog Simulation ==
[[File:RFSpice_Screen.png|thumb|400px450px|]]
[[RF.Spice A/D]] is an enhanced superset of EMAG Technologies' older [[B2.Spice A/D]] application with an extensive library of RF devices that include S-parameter-based [[Multiport Networks|multiport networks]] and a variety of generic and physical transmission line types. You can use [[RF.Spice]] to simulate or design distributed analog and mixed-mode circuits at high frequencies.
A multiport network is a frequency-domain “black-box” block that is modeled by its S-[[parameters]] as a function of frequency. [[RF.Spice]] currently offers the following models:
[[File:twoport1.png|thumb|350px400px| Cascading two two-port network devices.]][[File:twoport2.png|thumb|350px400px| The property dialog of a multiport network device.]]
* Complex Impedance (a two-pin device)