The 223B from ACST GmbH is a Frequency Multiplier with Input Frequency 80 to 110 GHz, Output Frequency 160 to 270 GHz, Input Power 50 to 250 mW, Output Power 11.7 dBm, Frequnecy 80 to 110 GHz. Tags: Waveguide, Waveguide Multiplier. More details for 223B can be seen below.