impedance normalizing

hi all

i am just wondering,if we want to compare the simulated and measured S parameters,

is it necessary to normalise the S parameters to a fixed impedance say 50 ohm? as most measuring instruments are 50 ohm

how much different results we will get if we make a wrong decision whether normalizing when its not necessary or not normalizing when its required

i would appreciate any comments

regards

you can quickly understand the difference if you try ansoft designer SV.

hi there

thanks for your comments.
but can you explain a bit what do you understand about this issue?

as the purpose of my post to get some answer.

regards