The 317.2026-20/S from Microwave Devices Inc. is a Directional Coupler with Frequency 7 to 12.4 GHz, Coupling 20±1.00 dB, Coupling Variation ±1 dB, Frequency Sensitivity ±0.50 dB, Directivity 17 dB. Tags: Module with Connectors. More details for 317.2026-20/S can be seen below.