I/Q and Image Reject Mixers
In-phase quadrature (I/Q) mixers and image reject mixers (IRM) offer a robust frequency mixing solution for applications that require high image rejection or sideband suppression. These mixers can be used as an upconverter or downcoverter. I/Q or IRM mixers use two double-balanced mixers with a 90° hybrid. The inherent architecture of I/Q mixers eliminates the resulting product due to image frequency during downconversion and allows the selection of desired sideband during upconversion.