The DC1001001800GH from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 1 to 18 GHz, Coupling 10 dB, Coupling Variation ±0.4 to ±0.7 dB (Accuracy), Frequency Sensitivity ±0.8 to ±1.0 dB, Directivity 15 to 17 dB. Tags: Module with Connectors. More details for DC1001001800GH can be seen below.