The GRF4005 from Guerrilla RF is a RF Amplifier with Frequency 100 MHz to 3.8 GHz, Gain 11.8 to 12.8 dB, Noise Figure 0.88 to 1.05 dB, Output Power 26 to 27.5 dBm, Output Power 0.4 to 0.56 W. Tags: Surface Mount, Low Noise Amplifier, Driver Amplifier, Power Amplifier, Gain Block. More details for GRF4005 can be seen below.