The A2023-20 from Atlantic Microwave is a Directional Coupler with Frequency 0.5 to 2 GHz, Coupling 20 dB, Coupling Variation ± 1 dB, Frequency Sensitivity ±0.75 dB, Directivity 23 dB. Tags: Module with Connectors. More details for A2023-20 can be seen below.