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RCS Based Depolarizing Passive Tag with Improved Clutter Rejection for Potentiometric Gas Sensing

机译:基于RCS基于改进的杂波抑制电位气体感应的RCS

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This paper presents a radar cross-section (RCS) based tag capable of detecting acidic/basic volatiles in the sensing environment. The sensor consists of two miniaturized annular slot antennas. One acts as the sensing element and the other as the reference. Both antennas are perturbed to provide a high cross-polarized scattering response. The cross-polarization-based interrogation technique provides robust detection against environmental scattering. A pH combination electrode coupled to a varactor diode provides the necessary transduction required for gas sensing. The concentration of the gas being monitored directly translates to the resonant frequency modulation of the sensing antenna.
机译:本文介绍了一种基于雷达横截面(RCS)标签,其能够检测传感环境中的酸性/碱性挥发物。传感器由两个小型化的环形槽天线组成。一种充当传感元件,另一种是参考。两个天线都被扰乱,以提供高交叉极化散射响应。基于交叉偏振的询问技术提供了对环境散射的鲁棒检测。耦合到变容二极管的pH组合电极提供了气体感测所需的必要转换。被监测的气体的浓度直接转化为传感天线的谐振频率调制。

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