The 219E from ACST GmbH is a Frequency Multiplier with Input Frequency 70 to 110 GHz, Output Frequency 210 to 330 GHz, Input Power 40 to 150 mW, Output Power 6 to 10.7 dBm, Frequnecy 70 to 110 GHz. Tags: Waveguide, Waveguide Multiplier. More details for 219E can be seen below.