The AM020180CP-20 from AMCOM Communications, Inc. is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 20 dB, Coupling Variation ±1.0 dB, Frequency Sensitivity ±0.45 to ±1.0 dB, Directivity 15 to 17 dB. Tags: Module with Connectors. More details for AM020180CP-20 can be seen below.