The C10-1200W from Marki Microwave is a Waveguide Coupler that operates from 60 to 90 GHz. This 10 dB coupler provides a directivity of more than 40 dB and has an insertion loss of 1.1 dB. It has a return loss of 35 dB and an amplitude flatness of 1 dB. This coupler is built with high precision and then gold-plated for high corrosion resistance. It is available in a module that measures 3.38 x 1.20 x 0.87 inches with WR-12 waveguide (UG-387/U) input and output interfaces. The coupler is ideal for mmWave and high-power applications.