The D30N010180 from Fujian MIcable is a Directional Coupler with Frequency 1 to 18 GHz, Coupling 30 dB, Coupling Variation ±0.7 dB, Amplitude Flatness ±0.7 dB, Directivity 14 to 16 dB. Tags: Module with Connectors. More details for D30N010180 can be seen below.