This paper presents a reliable microwave and microfluidic miniature sensor dedicated to\nthe measurement of glucose concentration in aqueous solution. The device; which is integrated with\nmicrotechnologies; is made of a bandstop filter implemented in a thin film microstrip technology\ncombined with a fluidic microchannel. Glucose aqueous solutions have been characterized for\nconcentration ranging from 80 g/L down to 0.3 g/L and are identified with the normalized\ninsertion loss at optimal frequency. The sensitivity of the sensor has consequently been estimated at\n7.6 Ã?â?? 10âË?â??3 dB/(g/L); together with the experimental uncertainty; the resolution of the sensor comes\nto 0.4 g/L. These results demonstrate the potentialities of such a sensor for the quantitative analysis\nof glucose in aqueous solution.
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