The 110DRWDXCS-XX_Cu from A-Info is a Waveguide Coupler with Frequency 11 to 26.5 GHz, Coupling 10 dB, 20 dB, 30 dB, 40 dB, 50 dB, Directivity 25 dB. Tags: Double Ridged Coupler, Directional Coupler. More details for 110DRWDXCS-XX_Cu can be seen below.