The D20N003670 from Fujian MIcable is a Directional Coupler with Frequency 0.3 to 67 GHz, Coupling 20 dB, Coupling Variation ±1.7 dB, Amplitude Flatness ±1.8 dB, Directivity 7 to 14 dB. Tags: Module with Connectors. More details for D20N003670 can be seen below.