The HMC863ALC4 from Analog Devices is a RF Amplifier with Frequency 24 to 29.5 GHz, Gain 20.5 to 24 dB, Gain Flatness ±1.5 to 2 dB, Noise Figure 4.5 to 6 dB, Output Power 28.5 dBm. Tags: Surface Mount, Power Amplifier. More details for HMC863ALC4 can be seen below.