RFUD01C (UPC Mixer) is LO reject Mixer used in RF transceiver applications. The process used to design UPC Mixer is 0.1um GaAs pHEMT. This is singly balanced resistive Mixer. The IF+ and IF ports are connected to an off-chip IF Balun. The LO is applied to a balun to generate the required 180 phase shift at the transistor gates. DC bias gate is applied to gate of resistive mixer which improves LO rejection, IIP3 and CG as well. Results are shown in datasheet with all parasitics & coupling effects at desired frequency