The DC1002001800GD from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 10 dB, Coupling Variation ±0.5 to ±0.6 dB, Frequency Sensitivity ±0.65 dB, Directivity 15 dB. Tags: Module with Connectors. More details for DC1002001800GD can be seen below.