The CS20-07-435/1 from Pulsar Microwave is a Directional Coupler with Frequency 2.6 to 5.2 GHz, Coupling 20 dB, Coupling Variation ±1.25 dB, Amplitude Flatness 0.75 dB, Directivity 20 dB. Tags: Module with Connectors. More details for CS20-07-435/1 can be seen below.