Design of a Passive UHF/UWB Tag for Vital Signs Measurement

In this research paper, we introduce the conceptualization and development of a passive tag specifically designed for the continuous monitoring of both heart rate and respiratory rate. Notably, this circuit operates by harnessing energy from the UHF (Ultra High Frequency) frequency band. Additionally, a UWB (Ultra-Wideband) transmitter is employed to efficiently transmit the collected health-related data. The implementation of this technology in a compact form factor is noteworthy, as the occupied area of the circuit measures 2.75
$mm^{2}$
. This design was achieved using the TSMC 180 nm technology, demonstrating the feasibility of integrating advanced health monitoring capabilities into compact and efficient electronic systems.