The DC20-020180NFH from Corech Microwave is a Directional Coupler with Frequency 4 to 18 GHz, Coupling 20 dB, Coupling Variation ±1.5 dB (Balance), Directivity 9 dB, Average Power 200 W (CW). Tags: Module with Connectors. More details for DC20-020180NFH can be seen below.