The FMW90CP001-10 from Fairview Microwave is a Waveguide Coupler with Frequency 8.2 to 12.5 GHz, Coupling 10 dB, Directivity 38 dB, Insertion Loss 0.6 dB, Power 100 W. Tags: Broadwall Coupler, Directional Coupler. More details for FMW90CP001-10 can be seen below.