The GRF4205 from Guerrilla RF is a RF Amplifier with Frequency 400 MHz to 3.8 GHz, Gain 20 dB, Noise Figure 5 dB, Output Power 30.5 dBm, Output Power 1.12 W. Tags: Surface Mount, Power Amplifier, Driver Amplifier. More details for GRF4205 can be seen below.