The 317.2029-30/S from Microwave Devices Inc. is a Directional Coupler with Frequency 18 to 26.5 GHz, Coupling 30±1.20 dB, Coupling Variation ±1.20 dB, Frequency Sensitivity ±0.70 dB, Directivity 11 dB. Tags: Module with Connectors. More details for 317.2029-30/S can be seen below.