I've added impedance measurements to the S-parameter plotter. It now includes the one-port reflection method and the two-port series-through, shunt-through, and Y21 methods. Y21 cancels stray port reactance. The plotter includes reference impedance renormalization. You can measure a component at 50 ohms and see the response at its design impedance. I include a utility to merge files for forward and reverse S11 and S21 measurements to obtain S11, S21, S12, and S22. This lets you use a NanoVNA to fully characterize a component that may have an asymmetrical response, such as a ceramic filter.
The program is at the top of the following page. See the bottom of the page for downloading instructions.
Brian
