The 223D from ACST GmbH is a Frequency Multiplier with Input Frequency 46.66 to 73.33 GHz, Output Frequency 140 to 220 GHz, Input Power 50 to 250 mW, Output Power 11.7 dBm, Frequnecy 46.66 to 73.33 GHz. Tags: Waveguide, Waveguide Multiplier. More details for 223D can be seen below.