Power Amplifier OFDM Simulation

Hi Friends

I designed a Power amplifier using ADS, and simulated it with Harmonic balance simulator. Since this PA is going to be used in OFDM system, I am looking for a way that simulate it with OFDM input and check the output's shoulder. I really appreciate that if any of you can help me and show me a way to do this in ADS.

Hi
did you solve your problem to simulate OFDM power amplifier in ADS?

I have never used ADS, but prefer AWR Microwave Office. In that we can connect a port with variable frequency. See if you have anything like this in ADS