A 28-nm FD-SOI 77-GHz Automotive FMCW Radar with Antenna Launcher in Package

This paper presents a 77-GHz FMCW automotive radar transceiver implemented in 28-nm FD-SOI technology. The transceiver integrates a single-channel transmitter, a single-channel receiver, and a frequency multiplier chain to enable high-performance radar operation, with a PA delivering 24% peak PAE at 17.5dBm output power and an RX achieving 8.5 dB NF and +16dBm IIP₃ at chip level. The chip is packaged in flip-chip ball grid array technology and features a direct, compact transition from the MMIC to a waveguide antenna mounted on the back side of the PCB, enabling efficient RF front-end integration. The transceiver targets automotive quality and functional safety requirements and has been characterized across process corners, supply voltages, and temperature variations. Characterization includes on-wafer, on-package, and extensive radar application measurements, collectively demonstrating significant improvements over contemporary automotive radar transceivers.