The CS20-02-436/1 from Pulsar Microwave is a Directional Coupler with Frequency 500 MHz to 2 GHz, Coupling 20 dB, Coupling Variation ±1 dB, Amplitude Flatness 0.75 dB, Directivity 23 dB. Tags: Module with Connectors. More details for CS20-02-436/1 can be seen below.