The DC20-120180NF from Corech Microwave is a Directional Coupler with Frequency 12 to 18 GHz, Coupling 20 dB, Coupling Variation ±1 dB (Balance), Directivity 12 to 14 dB, Average Power 30 W (CW). Tags: Module with Connectors. More details for DC20-120180NF can be seen below.