Four-channel 60 GHz upconversion mixer with 14 dB gain and 2.5 dBm P1dB using transformer matching network

A 60 GHz upconversion mixer is realised in a 65 nm LP CMOS. The mixer consists of a Gilbert cell, a LO buffer and a RF buffer. To enhance the bandwidth and reduce the area, the transformer impedance matching network is used. The measured results show that the mixer covers the IEEE 802.15.3c standard four channels, from 57 to 66 GHz. In each channel, the gain flatness is <;1.5 dB. In channel 2, the mixer achieves a gain of 14 dB and an output power 1 dB compression point of 2.5 dBm, while consuming 32 mW power drain from a 1 V supply. To the best of authors´ knowledge, this is an advance in the state-of-the-art mixers.