60 GHz FMCW Millimeter Wave Radar Assisted With Dual-Layer Wideband Flexible Metasurface for Accurate Wrist Pulse Monitoring

Asyari, Rifa Atul Izza; Wiranata, M. Zharfan; Li, Changzhi; Simorangkir, Roy B. V. B.; Teichmann, Daniel

Abstract

This letter presents a novel passive focusing metasurface designed for wrist pulse detection within the 60 GHz millimeter wave frequency range, incorporating a dual-layer transmitarray antenna. The proposed metasurface demonstrates exceptional polarization characteristics and a high degree of operational efficiency, as substantiated by rigorous far-field assessments. This innovative metasurface has significant potential for applications in human-device interfaces, health monitoring systems, and safety screening protocols, where the ability to focus and manipulate waves with flexibility is paramount. We rigorously evaluated its radiative safety and compared its efficacy with a conventional photoplethysmogram (PPG) reference. The results show a close agreement between our proposed design and the PPG.

Citation

Asyari, R. A. I., Wiranata, M. Z., Li, C., Simorangkir, R. B. V. B., & Teichmann, D. (2024). 60 GHz FMCW Millimeter Wave Radar Assisted With Dual-Layer Wideband Flexible Metasurface for Accurate Wrist Pulse Monitoring. IEEE Sensors Letters, 8(3), 1-4. https://doi.org/10.1109/lsens.2024.3365851

• Journal Article Type: Article
• Acceptance Date: Feb 10, 2024
• Online Publication Date: Feb 14, 2024
• Publication Date: 2024-03
• Deposit Date: Feb 15, 2024
• Publicly Available Date: May 8, 2024
• Journal: IEEE Sensors Letters
• Print ISSN: 2475-1472
• Publisher: Institute of Electrical and Electronics Engineers
• Peer Reviewed: Peer Reviewed
• Volume: 8
• Issue: 3
• Article Number: 5501004
• Pages: 1-4
• DOI: https://doi.org/10.1109/lsens.2024.3365851
• Keywords: Electrical and Electronic Engineering; Instrumentation
• Public URL: https://durham-repository.worktribe.com/output/2256102