论文标题
紧凑无线传感器的微波等离子谐振器的智能共振跟踪
Intelligent resonance tracking of a microwave plasmonic resonator for compact wireless sensors
论文作者
论文摘要
等离子体传感一直是几十年来的聚光灯，其概念和应用已被推广到微波带中欺骗表面等离子体（SSP）。在这里，我们在打印的电路板尺寸为18毫米 * 12毫米的印刷电路板中报告了一个紧凑的无线传感器，通过软件定义的方案跟踪微波等离子谐振器的谐振频移。微波等离子谐振器产生深层波长的大小，灵敏度增强和良好的电磁兼容性性能。软件定义的共振跟踪方案最小化了硬件电路和消耗的光谱资源，并使检测智能地适应目标共振，信噪比为69 dB，数据速率为2272个测量点每秒。该传感器已通过丙酮蒸气浓度传感验证，而可以通过更换传感器材料来广泛扩展其应用。这种方法为物联网（IoT）中的共振传感器提供了紧凑，敏感，准确和智能的解决方案。
Plasmonic sensing has been in the spotlight for decades, the concept and applications of which have been generalized to spoof surface plasmons (SSPs) in the microwave band. Here, we report a compact and wireless sensor within a printed circuit board size of 18 mm * 12 mm, tracking the resonance frequency shift of a microwave plasmonic resonator via a software-defined scheme. The microwave plasmonic resonator yields a deep-subwavelength size, enhanced sensitivity, and a good electromagnetic compatibility performance. The software-defined resonance tracking scheme minimalizes the hardware circuit and the consumed spectrum resources, and makes the detection intelligently adaptive to the target resonance, with a signal-to-noise ratio of 69 dB and a data rate of 2272 measuring points per second. The sensor has been validated via acetone vapor concentration sensing, while its applications can be widely extended by replacing the transducer materials. This approach provides compact, sensitive, accurate and intelligent solutions for resonant sensors in the Internet of things (IoT).
