A 2.2GHz sub-harmonic mixer for directconversion receivers in 0.13/spl mu/m CMOS

A 0.13mum CMOS sub-harmonic mixer uses a passive switching network to achieve a dc offset of 0.7mV and a 2timesLO leakage of -91dBm at the RF port. The LO leakage is -95dBm, and the flicker-noise corner is 100kHz. The mixer requires an LO input power of -18dBm and consumes 13mW from a 1.2V supply