The D4005H007180 from Fujian MIcable is a Directional Coupler with Frequency 0.7 to 18 GHz, Coupling 40 dB, Coupling Variation ±1.2 dB, Amplitude Flatness ±1.2 dB, Directivity 10 to 12 dB. Tags: Module with Connectors. More details for D4005H007180 can be seen below.