The CS20-12-435/1 from Pulsar Microwave is a Directional Coupler with Frequency 7 to 12.4 GHz, Coupling 20 dB, Coupling Variation ±1 dB, Amplitude Flatness 0.3 dB, Directivity 17 dB. Tags: Module with Connectors. More details for CS20-12-435/1 can be seen below.