The DC2002001800GH from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 20 dB, Coupling Variation ±0.3 to ±0.5 dB (Accuracy), Frequency Sensitivity ±0.7 to ±1.0 dB, Directivity 15 dB. Tags: Module with Connectors. More details for DC2002001800GH can be seen below.