The emphasis of the paper is on the development of the microwave mechanism-based cost-effective and sensitive Meandered Signal Coplanar Sensor (MSCS) with rectangular PDMS cavity for the mediator-free, rapid, quantitative and non-destructive characterization of the aqueous glucose solution. MSCS sensor is configured of the coplanar waveguide (CPW) with the meander structured inductor embedded at the center of the signal conductor, where the meander structured inductor being utilized as the sensing area. The rectangular cavity made of PDMS (Polydimethylsiloxane) polymer has been used to restrict the Sample Under Test (SUT) to the sensing area. Aqueous samples with varying glucose concentrations have been prepared with deionized water and 0.9% NaCl (Sodium Chloride) solution. Analysis of the experimental RF (radio frequency) measurements revealed that the increase in glucose concentration exhibited distinct and distinguishable S-parameters (scattering parameters). The findings support the potential application of the proposed sensor for quantification.

本文的重点是开发基于微波机制的具有成本效益且灵敏的曲折信号共面传感器 (MSCS)，该传感器具有矩形 PDMS 腔，用于葡萄糖水溶液的无介质、快速、定量和无损表征. MSCS 传感器由共面波导 (CPW) 构成，在信号导体的中心嵌入曲折结构电感，其中曲折结构电感用作传感区域。由 PDMS（聚二甲基硅氧烷）聚合物制成的矩形腔已用于将待测样品 (SUT) 限制在传感区域。使用去离子水和 0.9% NaCl（氯化钠）溶液制备了具有不同葡萄糖浓度的水样。对实验性 RF（射频）测量值的分析表明，葡萄糖浓度的增加表现出明显且可区分的 S 参数（散射参数）。这些发现支持所提出的传感器在量化方面的潜在应用。