Publication Details:
Journal or Publication Title:
Armenian Journal of Physics=Ֆիզիկայի հայկական հանդես
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Title:
Glucose Aqueous Solution Sensing by Modified Hilbert Shaped Microwave Sensor
Creator:
L. Odabashyan ; Babajanyan, A. ; Zh. Baghdasaryan ; B. Friedman ; K. Lee
Corporate Creators:
Yerevan State University, Department of Radiophysics ; Department of Physics, Sogang University, Seoul 121-742, Korea ; Department of Physics, Sam Houston State University, Huntsville, Texas 77341, USA
Subject:
Physics ; Electronic structure and electrical properties of surfaces ; Instruments, apparatus, components common to several branches of physics
Coverage:
Abstract:
We present a microwave sensor based on the modified first order Hilbert curve designed for detecting glucose concentration in aqueous solutions by using a real-time microwave near-field electromagnetic interaction technique. We observed S11 reflection parameters of the sensor at resonant frequencies depend on the glucose concentration. We could determine the glucose concentration in the 0-250 mg/dl concentration range at an operating frequency near 2.6 GHz. The measured minimum detectable signal was 0.018 dB/(mg/dl) and the measured minimum detectable concentration was 1.68 mg/dl. The simulation result for the minimum detectable signal and the minimum detectable concentration was 0.023 dB/(mg/dl) and 1.3 mg/dl, respectively. Our proposed system has excellent potential to serve as a human bloodless glucometer.