A CMOS-based 140 GHz 4x4 MIMO Radar Prototype with 10 GHz Bandwidth

This paper presents a highly integrated and compact 140 GHz MIMO FMCW radar prototype with 10 GHz bandwidth. The radar is based on a custom- designed CMOS chipset with on-chip antennas. Together with COTS FPGA and pmcessor, the prototype is packaged in a 10x10x5 cm3 housing that allows testing and experimenting without laboratory equipment. The paper describes the chipset and its performances, the signal Processing architecture and implementation, the mechanical and thermal design of the housing. Measurement results with the prototype are provided, demonstrating the radar resolution performance and the 2D angle measurement capabilities.