The SFP-223403205-28SF-S1 from ERAVANT is a Frequency Multiplier with Input Frequency 11 to 20 GHz, Output Frequency 22 to 40 GHz, Input Power 18 dBm, Harmonics 20 dBc, Frequnecy 11 to 20 GHz. Tags: Module with Connectors, Waveguide, Passive, Waveguide Multiplier. More details for SFP-223403205-28SF-S1 can be seen below.