The QDDCC-26300-40000 from Qualwave is a Waveguide Coupler with Frequency 26.3 to 40 GHz, Coupling 20 to 30 dB, Directivity 15 to 16 dB, Power 36000 W. Tags: Dual Directional Coupler, Crossguide Coupler. More details for QDDCC-26300-40000 can be seen below.