The SFP-15228-S1 from ERAVANT is a Frequency Multiplier with Input Frequency 25 to 37.5 GHz, Output Frequency 50 to 75 GHz, Input Power 20 dBm, Harmonics 20 dB, Frequnecy 25 to 37.5 GHz. Tags: Waveguide, Passive, Waveguide Multiplier. More details for SFP-15228-S1 can be seen below.