The PMK3-XX from Microwave Resources is a Frequency Multiplier with Input Frequency 6 to 8.83 GHz, Output Frequency 18 to 26.5 GHz, Input Power 20 dBm, Output Power 3 dBm, Sub-Harmonic Suppression 20 dB. Tags: Module with Connectors, Waveguide, Passive, Waveguide Multiplier. More details for PMK3-XX can be seen below.