Microwaves Based Sensors For Non-Invasive Glucose Monitoring

This paper presents the feasibility of using low cost, passive, non-ionizing, pain-free microwave-based sensors for non-invasive glucose monitoring. The proposed work explores using both reflection and transmission-based circuits to detect glucose levels in the range of 40–210 mg/dL within the band of 1–10 GHz. The proposed work presents design, parametric study and simulations for two microwave-based sensors. The first is reflection-based sensor with a slot operating at 1.57 GHz. The second is a single and multi-band transmission-based sensors operating at 2.45 and 3.75 GHz. Both sensors are tested and simulated with glucose samples and proves success in detecting glucose concentrations in the range of 40–210 mg/dl.