The SMM5845V1B from Sumitomo Electric Device Innovations is a RF Amplifier with Frequency 21.2 to 23.6 GHz, Gain 22 dB, Power Gain 18 to 21 dB, Output Power 33 dBm, Output Power 2 W. Tags: Surface Mount, Ceramic, Hermetic, Power Amplifier. More details for SMM5845V1B can be seen below.