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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >A Half-Cut Compact Monopole Antenna for SFCW Radar-Based Concrete Wall Monitoring With a Passive Cooperative Target
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A Half-Cut Compact Monopole Antenna for SFCW Radar-Based Concrete Wall Monitoring With a Passive Cooperative Target

机译：用于SFCW基于雷达的混凝土墙监测的半切割紧凑型单极天线，具有被动合作目标

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摘要

Stepped frequency continuous wave (SFCW)-based radar with passive cooperative target is a promising nondestructive method to monitor the concrete temperature change. By burying a surface acoustic wave (SAW) sensor in the concrete to act as the cooperative target, the physical properties of the concrete can be measured by analyzing the reflections of the probing SFCW signal. Because the SAW sensor should be connected to an antenna to convert the electromagnetic wave into the acoustic wave, a half-cut compact monopole antenna is designed and fabricated in this letter. Taking the advantages of corrugated edge and half-structure technologies, the size of the monopole antenna decreases significantly without sacrificing the performance, which makes the SAW sensor together with antenna suitable to be inserted into the concrete. The experimental results show that the proposed antenna can work well with the SAW sensor in the concrete and the proposed method can measure the temperature change in concrete continuously.
机译：基于无源协作目标的步进频率连续波（SFCW）基于无源协作目标是监测混凝土温度变化的有前途的非破坏性方法。通过将混凝土中的表面声波（锯）传感器埋入用作协作目标，可以通过分析探测SFCW信号的反射来测量混凝土的物理性质。由于SAW传感器应连接到天线以将电磁波转换为声波，因此在这封信中设计和制造了半切割的紧凑型单极天线。采用波纹边缘和半结构技术的优点，单极天线的尺寸显着降低，而不会牺牲性能，这使得锯传感器与适于插入混凝土中的天线。实验结果表明，该建议的天线可以用混凝土中的SAW传感器良好，所提出的方法可以连续测量混凝土中的温度变化。

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