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A low-voltage and low-power down-conversion bulk-driven mixer using standard 0.13 mum CMOS technology is presented in this letter. To work on a low supply voltage and low power consumption applications while maintaining reasonable performance, the bulk-driven technique is selected in this V-band mixer design. The mixer has a conversion gain of 0 plusmn1.5 dB from 51 to 65 GHz with low supply voltage of 1 V and low power consumption of 3 mW. To our knowledge, the MMIC is the highest frequency CMOS bulk-driven mixer to date with good conversion gain and low power consumption among the recently published active mixers around 60 GHz.