The CS06-06-435/1 from Pulsar Microwave is a Directional Coupler with Frequency 3.6 to 4.2 GHz, Coupling 6 dB, Coupling Variation ±1 dB, Amplitude Flatness 0.3 dB, Directivity 15 dB. Tags: Module with Connectors. More details for CS06-06-435/1 can be seen below.