The CS16-20-436/13N from Pulsar Microwave is a Directional Coupler with Frequency 2 to 18 GHz, Coupling 16 dB, Coupling Variation ±1 dB, Amplitude Flatness 0.5 dB, Directivity 12 to 15 dB. Tags: Module with Connectors. More details for CS16-20-436/13N can be seen below.