37-40GHz MMIC Sub-Harmonically Pumped Image Rejection Diode Mixer

The design simulations of a sub-harmonically pumped image rejection diode mixer for Ku band operation is described. Details of design approach and outcome of performance simulations will be presented showing, in the 37+40GHz RF band with 2.5GHz of IF frequency, a typical conversion loss ¿12.5dB with a 2LO/RF isolation ¿70dB and an image rejection ¿20dB along with an IP3¿ldBm, for an LO drive power level of +12dBm, for a final compact MMIC size of 2.37×2.31mm2.