The CS10-04-436/13N from Pulsar Microwave is a Directional Coupler with Frequency 1 to 4 GHz, Coupling 10 dB, Coupling Variation ±1 dB, Amplitude Flatness 0.75 dB, Directivity 18 dB. Tags: Module with Connectors. More details for CS10-04-436/13N can be seen below.