The DC4002200230GN from Sainty-Tech Communications Limited is a Directional Coupler with Frequency 2.2 to 2.3 GHz, Coupling 40 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.7 dB, Directivity 15 to 20 dB. Tags: Module with Connectors. More details for DC4002200230GN can be seen below.