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.
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