What is Best power Amplifier in RFID s at 860-950 Mhz

Which Power Amplifier will best suits for RFID Readers and RFID Antenna to Increase the gain.It Should operate in 860-950MHz frequency band.
Class A,B,C,E or MAAPSS0095 or any other antenna.

The project is smart card/Java card Development.

Please suggest me which will gives good Result.


Thanks In Advance

Hema Krishna