This article presents an ultralow-power 60-GHz indoor frequency-modulated continuous-wave (FMCW) radar in 28-nm CMOS. The radar front end employs a tunable matching network (TMN), which tracks the chirp frequency and supports a 17\% fractional bandwidth, covering unlicensed 60-GHz bands (57-66 GHz). A frequency sixtupler chain (x6) in the transmitter (TX) provides an output power of 8.1 dBm while achieving >20\% dc-to-RF efficiency. A mixer-first receiver (RX) front end followed by a source degenerated high-pass (HP) filter suppresses TX-to-RX leakage (spillover) and induces minimal spillover-to-target intermodulation. The RX exhibits a 10.5-dB noise figure (NF) at 60 GHz with only 5.6-mW power consumption, making it suitable for an MIMO array. The radar IC with its DSP platform fully demonstrates its capability in indoor sensing scenarios. The duty-cycling compatible design enabled by the 1-μs radar startup time consumes 62 mW/18 mW in continuous mode/6.25\% duty-cycled mode, a record low dc power compared to the state-of-the-art radars in this frequency range.
Kankuppe Raghavendra Swamy, A, Park, S, Renukaswamy, PT, Wambacq, P & Craninckx, J 2021, 'A Wideband 62-mW 60-GHz FMCW Radar in 28-nm CMOS', IEEE Transactions on Microwave Theory and Techniques, vol. 69, no. 6, 9425024, pp. 2921-2935. https://doi.org/10.1109/TMTT.2021.3075437
Kankuppe Raghavendra Swamy, A., Park, S., Renukaswamy, P. T., Wambacq, P., & Craninckx, J. (2021). A Wideband 62-mW 60-GHz FMCW Radar in 28-nm CMOS. IEEE Transactions on Microwave Theory and Techniques, 69(6), 2921-2935. Article 9425024. https://doi.org/10.1109/TMTT.2021.3075437
@article{ea4afdb10b9e4d9abb0e739c9b8b4eb3,
title = "A Wideband 62-mW 60-GHz FMCW Radar in 28-nm CMOS",
abstract = "This article presents an ultralow-power 60-GHz indoor frequency-modulated continuous-wave (FMCW) radar in 28-nm CMOS. The radar front end employs a tunable matching network (TMN), which tracks the chirp frequency and supports a 17\% fractional bandwidth, covering unlicensed 60-GHz bands (57-66 GHz). A frequency sixtupler chain (x6) in the transmitter (TX) provides an output power of 8.1 dBm while achieving >20\% dc-to-RF efficiency. A mixer-first receiver (RX) front end followed by a source degenerated high-pass (HP) filter suppresses TX-to-RX leakage (spillover) and induces minimal spillover-to-target intermodulation. The RX exhibits a 10.5-dB noise figure (NF) at 60 GHz with only 5.6-mW power consumption, making it suitable for an MIMO array. The radar IC with its DSP platform fully demonstrates its capability in indoor sensing scenarios. The duty-cycling compatible design enabled by the 1-μs radar startup time consumes 62 mW/18 mW in continuous mode/6.25\% duty-cycled mode, a record low dc power compared to the state-of-the-art radars in this frequency range. ",
keywords = "Duty cycling, frequency-modulated continuous-wave (FMCW) radar, low power transceiver, mixer first, 60-GHz radar, spillover resilience",
author = "\{Kankuppe Raghavendra Swamy\}, Anirudh and Sehoon Park and Renukaswamy, \{Pratap Tumkur\} and Piet Wambacq and Jan Craninckx",
year = "2021",
month = jun,
doi = "10.1109/TMTT.2021.3075437",
language = "English",
volume = "69",
pages = "2921--2935",
journal = "IEEE Transactions on Microwave Theory and Techniques",
issn = "0018-9480",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
number = "6",
}