The DB20-060180SF from Corech Microwave is a Dual Directional Coupler with Coupling 20 dB (Nominal), Coupling Variation ±1 dB (Balance), Frequency 6 to 18 GHz, Peak Power 0.5 kW, Average Power 50 W (CW). Tags: Module with Connectors, 50 W, 20 dB Dual-Directional Coupler from 6 to 18 GHz. More details for DB20-060180SF can be seen below.