The HMC561 from Analog Devices is a Frequency Multiplier with Input Frequency 4 to 10.5 GHz, Output Frequency 8 to 21 GHz, Input Power 0 to 6 dBm, Output Power 14 to 17 dBm, Phase Noise -139 dBc/Hz. Tags: Die, Active. More details for HMC561 can be seen below.