LTspice: Dynamic Load

[smithmat]

I'm trying to model a frequency-dependent load so I can generate accurate Bode plots using LTspice. The load is characterized by the attached Smith chart and impedance curves as captured using a VNA. Any suggestions?

Thanks for your thoughts.

 

[MikeMl]

You are aware of how to make parametric sweeps where you can vary parameters as a function of an independent variable? ({})

 

[smithmat]

I'm only aware of sweeps which plot a separate waveform for each step in a specified range of parameter values. Is there another directive I can use?

 

[MikeMl]

So, the task is to come up with a passive network that has the same Mag(Z) and Phase(Z) as the right side of the plot? By inspection, it looks to me to be a simple parallel resonant tank with a modest Q?

I would start by just doing freq sweeps of a simple network, where you can use stepped parameters to vary the inductance and/or capacitance.