Narda Power Divider 1-2 GHz, Model 4312-2
S11 and S21 measurements of a power divider (Narda 1-2 GHz, model 4312-2) are presented in the following figures. A VNA (pocketVNA) for S11 measurements and a spectrum analyser with tracking generator for S21 measurements were used. As can be seen the S11 results are a bit noisy therefore I interpolated the measured data with a short script written in Python for easier reading. It can be seen that the divider performs really well.