A Wearable mm-Wave Radar Platform for Cardiorespiratory Monitoring

A chest-wearable 60--GHz radar system is presented for continuous extraction of cardiorespiratory displacement waveforms as well as the respiratory rate (RR), heart rate (HR), and HR variability (HRV). The radar antenna's performance was investigated while in close proximity to the skin using full-wave electromagnetic simulations. Investigations using the adhesive chest-mounted prototype extract detailed cardiorespiratory displacement waveforms. An accuracy of over 96% is achieved for RR, while HR and HRV were extracted with accuracies of over 96% and 95%, respectively.