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Wireless Nano-VNA S-parameter monitoring for biomedical applications
Elmiladi, Lisa K. Aaen, Peter H. Elsherbeni, Atef Z.
Elmiladi, Lisa K.
Aaen, Peter H.
Elsherbeni, Atef Z.
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2024-04
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Abstract
The dynamic monitoring of biological metabolites, such as glucose and lactate, plays a pivotal role in healthcare diagnostics and sports science. Current research focuses on remote sensing techniques utilizing on-body resonant antenna or circuitry to track metabolite cxoncentrations through frequency variation. Traditional vector network analyzers (VNAs) used for this purpose are generally bulky and tethered, limiting their applicability for ambulatory subjects. This presentation introduces an innovative enhancement of a compact handheld VNA, the NanoVNA-H, custom-modified with integrated Wi-Fi and Bluetooth capabilities. This advancement eliminates the encumbrance of cables, enabling the VNA to be compactly mounted on a patient and permitting unimpeded movement. The system is designed to wirelessly relay measurement data to a remote base station for real-time analysis, significantly improving the practicality of continuous, on-body metabolic monitoring.
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