Design of Non-Invasive Glucose Measurement Sensor

This study suggests a small, low-cost, and adequate blood glucose sensor. A triangle-shaped defective ground structure (DGS) and a parallel linked microstrip line on the upper surface make up its architecture. The bandwidth and sensitivity of the suggested sensor can be greatly enhanced by optimizing the dimensions and position. In this configuration, 14 GHz operation is possible with a reflection coefficient of -39dB. A detailed sensitivity analysis is being conducted for each concentration of several glucose concentrations, referred to be material under test (MUT), from 80 to 4000 mg/dL. The simulated results reveal a frequency shift from 14 to 2.5 GHz, due to the loading effect of the blood and the container. An amplitude shift occurs due to the change in the blood glucose level when operating in the reflection mode. The applied sensor has an average sensitivity of 1.07%.