The CS20-13-435/3 from Pulsar Microwave is a Directional Coupler with Frequency 7.5 to 16 GHz, Coupling 20 dB, Coupling Variation ±1.25 dB, Amplitude Flatness 0.75 dB, Directivity 15 dB. Tags: Module with Connectors. More details for CS20-13-435/3 can be seen below.