3.2 A Near-Field RF Reflection Transceiver ASIC for Continuous Unobtrusive Blood Pressure Monitoring
Abstract
This work presents continuous, unobtrusive, and clinically accurate BP monitoring in a fully wearable form factor using an near-field RF reflection TRx ASIC in 65 nm CMOS. The NRR approach enables noncontact monitoring with comfort and long-term wear. The optimized TRx achieves 98.6 nVRMSIRN, while SAR-based DC-offset cancellation and closed-loop phase calibration mitigate Rx leakage and phase error for clinical accuracy. The ASIC is thoroughly validated in human studies achieving accurate BP extraction within 6mmHg mean absolute error.
Fields of Study & Subjects
Non-Invasive Vital Sign Monitoring
Radio Frequency Integrated Circuit Design
Wireless Body Area Networks
Publication details
- Journal / source
- Digest of technical papers/Digest of technical papers - IEEE International Solid-State Circuits Conference
- Pages
- 66–68
- Publication date
- 15 February 2026
- Language
- EN