The SWD-0340H-12-SB from SAGE Millimeter is a three-port waveguide directional coupler that operate from 60 to 90 GHz. The coupler has an insertion loss of 0.8 dB and directivity of more than 30 dB. This 3 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-12 waveguides with UG-387/U flanges. Custom coupling levels are available under different model numbers.