Hi Sugumar,
I suggest that you convert S22 for the AD8367 to an output impedance and see what you get. When I convert S22 to an output impedance I get about 13 ohms, which seems what one would expect if the 4:1 were installed backwards. I am currently working on an AGC design using the AD8367 and the Mini-Circuits TC4-1TX.
mrln55