How to insert Antenna in ADS as a load for amplifier

Dear all,

In ADS:
How can I insert an Antenna as a load for a LNA?
I can put it as a load for my amplifier, but the problem is I should also put a "TERM" at the output in order to see the gain.
How can I put theses two(Antenna and TERM) together at the output?

Any idea?

Thank you very much.
Best.