Using X-Parameters: PathWave RF Synthesis (Genesys) and PathWave System Design (SystemVue)

2021-05-13
You're convinced (as we are) that X-parameters provide the very best kind of nonlinear model for use in an RF System simulation, so two questions arise:
●Where do they come from?
●How do I use them?
There are only two ways to generate an X-parameter model. One is to measure a device yourself using a nonlinear vector network analyzer (NVNA). If you're lucky enough to have such a measurement system, you're all set. But there's another way to get them: PathWave Advanced Design System (ADS) can turn a circuit schematic into an X-Parameter file that can be consumed in PathWave RF Synthesis (Genesys) or PathWave System Design (SystemVue). That process has been outlined in another Technical Overview.
Once you obtain a model from either of these two methods, using it is simple. In fact, if you already know how to incorporate S-data into a simulation, the process is exactly the same. Take the schematic in Figure 1.

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March18, 2020

3120-1187.EN

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