Electromagnetic Field Interaction with Aqueous Glucose Solution in Dielectric Resonator

초록

We investigate an electromagnetic field interaction with aqueous glucose solution in microwave dielectric resonator to evaluate the glucose concentration. A microwave resonator as a biosensor allows observation of the small variation of the glucose concentration by measuring the shift of the resonance frequency and the microwave reflection coefficient, S-11. We observed the concentration of glucose with a detectable resolution up to 10 mg/ml at an operating frequency of about f = 1.68 GHz. The change of the glucose concentration is directly related to the change of the reflection coefficient due to the electromagnetic interaction between the dielectric resonator and the glucose solution. The operation principal is explained by the plane-wave solution model and simulated using a HFSS simulator. A glucose biosensor using a microwave dielectric resonator provides a unique approach for glucose monitoring.

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