QuinStar Technology’s short slot hybrid is a narrow wall 3 dB coupler, available in standard waveguide sizes from 18 to 110 GHz. This compact, four-port device is inherently matched and well-suited for balanced mixers and power splitting circuits. There is a 90 degree phase difference between the two output signals, while the fourth port is isolated from the input. The QSP series short slot hybrids are power dividers (3 dB couplers). They can be used in waveguide bridge circuits, image-reject and single sideband mixers, phase shifters, and power splitters where 90 degree phase shift between output power ports is required.