The DC1002001800GB from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 9 to 11 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.5 to ±0.7 dB, Directivity 12 to 14 dB. Tags: Module with Connectors. More details for DC1002001800GB can be seen below.