Modular Scalable 80- and 160-GHz Radar Sensor Platform for Multiple Radar Techniques and Applications

Modular 80- and 160-GHz 4-channel radar sensor platform is introduced based on relaxed single 40 GHz local oscillator source. The first two channels synthesize 2×2 multiple-input multiple-output (MIMO) radar at 80 GHz with on-board planar 8×1 patch arrays for enhanced angular resolution, while the other 2 channels employ 160 GHz system-on-chip (SoC) transceivers with integrated wideband 6-dBi on-chip antennas with air trenches for enhanced range resolution. Bistatic frequency modulated continuous wave (FMCW) and delta-sigma (Δ∑) modulation based frequency division multiplexing (FDM-) MIMO radar techniques are demonstrated. The flexible architecture of the modular radar platform allows also implementing fast-chirp, Doppler and selective distance radar techniques as well as 2-dimensional (2-D) ranging and data communication over radar imaging.