An up-conversion mixer includes a mixer cell having at least one output node configured to generate an output. The up-conversion mixer further includes an input stage coupled to the mixer cell, the input stage configured to receive an input signal and to produce a local minimum in a third order harmonic of the output with respect to an input power. The up-conversion mixer further includes a power supply input configured to receive a power supply voltage and a ground, and a maximum number of transistor stages between the power supply input and the ground is two.