Hello all, I have to get the polynomial equation from the S matrix, for example I have measured the S parameters of the SMA connector using the VNA for the frequency range 300KHz to 4GHz. I have to determine the loss of the connector and get the polynomial equation for the each S parameters such as S11,S12,S21 and S22. How can I get it with this information, could anyone please help me?.

The attached figure is the S2P file obtained from the VNA