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.
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机译：我们提出了一种基于修改后的一阶希尔伯特曲线的微波传感器，该希尔伯特曲线设计用于通过使用实时微波近场电磁相互作用技术来检测水溶液中的葡萄糖浓度。我们观察到传感器在共振频率下的S11反射参数取决于葡萄糖浓度。我们可以在接近2.6 GHz的工作频率下确定0-250 mg / dl浓度范围内的葡萄糖浓度。测得的最小可检测信号为0.018 dB /（mg / dl），测得的最小可检测浓度为1.68 mg / dl。最小可检测信号和最小可检测浓度的模拟结果分别为0.023 dB /（mg / dl）和1.3 mg / dl。我们提出的系统具有极好的潜力，可以用作人类的无血血糖仪。
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