A fully integrated CMOS 60-GHz transceiver for IEEE802.11ad applications

Abstract

A fully integrated 60-GHz transceiver for 802.11ad applications with superior performance in a 90-nm CMOS process versus prior arts is proposed and real based on a field-circuit co-design methodology. The reported transceiver monolithically integrates a receiver, transmitter, PLL(Phase-Locked Loop) synthesizer, and LO (Local Oscillator) path based on a sliding-IF architecture. The transceiver supports up to a 16QAM modulation scheme and a data rate of 6 Gbit/s per channel, with an EVM (Error Vector Magnitude) of lower than −20 dB. The receiver path achieves a configurable conversion gain of 36∼64 dB and a noise figure of 7.1 dB over 57∼64 GHz, while consuming only 177 mW of power. The transmitter achieves a conversion gain of roughly 26 dB, with an output P1dB of 8 dBm and a saturated output power of over 10 dBm, consuming 252 mW of power from a 1.2-V supply. The LO path is composed of a 24-GHz PLL, doubler, and a divider chain, as well as an LO distribution network. In closed-loop operation mode, the PLL exhibits an integrated phase error of 3.3° rms (from 100 kHz to 100 MHz) over prescribed frequency bands, and a total power dissipation of only 26 mW. All measured results are rigorously loyal to the simulation.