The CHA3409-98F from United Monolithic Semiconductors is a RF Amplifier with Frequency 25 to 45 GHz, Gain 23 dB, Noise Figure 6.5 dB, Output Power 19 to 20 dBm, Output Power 0.08 to 0.1 W. Tags: Power Amplifier, Driver Amplifier. More details for CHA3409-98F can be seen below.