The 2020-4018-10 from MACOM is a Directional Coupler with Frequency 7 to 12.4 GHz, Coupling 10 dB, Coupling Variation ±0.75 dB, Frequency Sensitivity ±0.40 dB, Directivity 20 dB. Tags: Module with Connectors. More details for 2020-4018-10 can be seen below.