Power Amplifier for RFID Application

Hi...

I want to design Class B push-pull power amplifier for RFID application with operating frequency at 13.56 MHz. I confuse about transistor should I used. Because my power amplifier is a push pull amplifier, it will need both npn and pnp transistor that must complement. Do you guys have suggestion what type of transistor should I use?

2N5942 Transistor......!
Have a look at it!

Thank you for your suggestion.
But I don't have analog parts library on ADS. Do you have idea where I can download it's analog part library?

It is a Motorolla transistor i guess! You can email them and ask them to give you the Model/Design Kit which you can then install and use in your design.