Down-converter solutions for 77-GHz automotive radar sensors in 28-nm FD-SOI CMOS technology

This paper presents a review of 77-GHz down-converter solutions for automotive radar sensors in 28-nm FD-SOI CMOS technology. A comparison of two different topologies based on common source (CS) and common gate (CG) stages is reported. The comparison is carried out at a power supply as low as 1-V and at 15-mA current consumption. CS-based and CG-based down-converters achieve a conversion gain of 27.5 and 21.3 dB over a -3-dB bandwidth of 16 GHz and 22 GHz, respectively, while exhibiting a noise figure of 7.8 dB and 9.1 dB.