The A3205-20 from Atlantic Microwave is a Directional Coupler with Frequency 4 to 8 GHz, Coupling 20 dB, Coupling Variation ± 1.25 dB, Frequency Sensitivity ± 0.75 dB, Directivity 20 dB. Tags: Module with Connectors. More details for A3205-20 can be seen below.