The QPA9901 from Qorvo is a RF Amplifier with Frequency 2.11 to 2.2 GHz, Gain 34 to 36.5 dB, PAE 29 to 32 %, Input Return Loss 13 dB, Harmonics -60 dBc (3rd), -45 dBc (2nd). Tags: Surface Mount, Power Amplifier. More details for QPA9901 can be seen below.