The SWD-5038531040H-15-SB from SAGE Millimeter is a V band, three-port waveguide directional coupler that operates from 50 GHz to 85 GHz. The coupler has an insertion loss of 0.7 dB and directivity of more than 30 dB. This 10 dB coupler has a traditional multi-hole and split block design. It is available in a module that measures 3.60 x 0.95 x 0.83 inches and is ideal for test labs, instrumentation and sub-assemblies applications. The input and output ports are WR-15 waveguides with UG-385/U flanges. Custom coupling levels are available under different model numbers.