Why |S11|^2 + |S21|^2 > 1?

I did the TRL calibration of the Vector Network Analyzer E8363B in the frequency range 8.2 to 12.4 GHz. Immediately after calibration, I measured S-parameters of my waveguide line. I had |S11|^2 +...

06 October 2022 1,174 4 View