The DC20-202212SF from Corech Microwave is a Directional Coupler with Frequency 20.2 to 21.2 GHz, Coupling 20 dB, Coupling Variation ±1 dB (Balance), Directivity 12 dB, Average Power 30 W (CW). Tags: Module with Connectors. More details for DC20-202212SF can be seen below.