The AK-3XW from Spacek Labs is a Frequency Multiplier with Input Frequency 6 to 8.8 GHz, Output Frequency 18 to 26.5 GHz, Input Power 12 dBm, Output Power 17 dBm, Frequnecy 6 to 8.8 GHz. Tags: Module with Connectors, Waveguide, Active, Waveguide Multiplier. More details for AK-3XW can be seen below.