The LM-18G40G-18-1W-292FF from Quantic PMI (Planar Monolithics) is a Limiter with Frequency 18 to 40 GHz, Flat Leakage 0.06 W, Flat Leakage 18 dBm, CW Input Power 1 W, CW Input Power 30 dBm. Tags: Module with Connectors. More details for LM-18G40G-18-1W-292FF can be seen below.