The SFA-284SF-S1 from ERAVANT is a Frequency Multiplier with Input Frequency 6.63 to 10 GHz, Output Frequency 26.5 to 40 GHz, Input Power 5 dBm, Output Power 20 dBm, Harmonics -15 dBc. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for SFA-284SF-S1 can be seen below.