The HMC498LC4 from Analog Devices is a RF Amplifier with Frequency 17 to 24 GHz, Gain 22.5 dB, Noise Figure 4.5 dB, Output Power 25.5 dBm, Output Power 0.35 W. Tags: Surface Mount, Driver Amplifier, Power Amplifier. More details for HMC498LC4 can be seen below.