The MM1-1850S from Marki Microwave is a passive GaAs double balanced MMIC mixer with an RF/LO frequency from 18 to 50 GHz and IF frequency from DC to 20 GHz. The mixer has excellent conversion loss, isolation and spurious performance across its broad bandwidth. It is available as a wire bondable chip that measures 0.058" x 0.046" x 0.004" or as a module with SMA/1.85mm connectors. Like most Marki Microwave products this model too has a non-linear software model available with the Marki PDK for Microwave office.