Energy efficient distributed-oscillators at 134 and 202GHz with phase-noise optimization through body-bias control in 28nm CMOS FDSOI technology

Abstract

Two compact frequency generation topologies based on distributed oscillator architecture have been for the very first time integrated at 134GHz and 202GHz in a 10ML 28nm FDSOI CMOS technology. The efficient fundamental frequency generation enables output powers of 0.4dBm and 0.3dBm and 5.5% and 5.4% DC-to-RF efficiency respectively. The body tie of the 28nm FDSOI technology allows phase noise fine tuning through body-bias control. The measured optimum phase noises are −99.6dBc/Hz and −100.4dBc/Hz at 1MHz offset, for the two different oscillators. Robust design has been as well demonstrated, opening the way to mmW and sub-mmW SoC integration in deep submicron FDSOI CMOS.