The QDDBC-14500-22000 from Qualwave is a Waveguide Coupler with Frequency 14.5 to 22 GHz, Coupling 40 to 50 dB, Directivity 30 dB, Power 120000 W. Tags: Dual Directional Coupler, Broadwall Coupler. More details for QDDBC-14500-22000 can be seen below.