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 ST's 28-nm FD-SOI technology. The transceiver integrates a single-channel transmitter, a single-channel receiver, and a frequency multiplier chain to support high-performance radar operation. 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 is designed to meet 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.