antenna measurement horn

Hello,
I have a question if someone has heard or has information about the following idea (or if it is impossible):

A RFID antenna is placed between two horn antennas. With measuring the S-Parameters of the horn antennas the input impedance of the RFID antenna should be determined.

nobody?

It is obscure, in other words, impossible in my eyes.

Hello Flanello:

I hope you already managed to get your idea done. In my opinion, it is possible. A fried of mine is doing the same but with one antenna instead of two...

Please let me know of your progress in this regard!

Thanks,

Hamidreza