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Terahertz FSS for space borne passive remote sensing application

机译:太赫兹FSS在星载被动遥感应用中的应用

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摘要

A terahertz frequency selective surface (FSS) which operates inside the spatial filtering front-end of a high sensitivity receiver is proposed and experimentally verified. To achieve this terahertz FSS metamaterial which exhibits extremely low insertion loss and is insensitive to the variations of polarisations and incident angles, the FSS array is constructed by an electrically thick SiO2 layer (quartz wafer) and an ultra-thin high conductivity aluminium layer with periodic aperture unit cells. The micro-machined metallic pattern is shaped by the combination of a sub-wavelength circular ring and a split-ring resonator. Experimental results and predicted spectral responses are shown to be in good agreement over the frequency range of 0.1-0.5 THz.
机译:提出并通过实验验证了在高灵敏度接收器的空间滤波前端内部工作的太赫兹频率选择表面(FSS)。为了实现这种太赫兹FSS超材料,该材料具有极低的插入损耗,并且对偏振和入射角的变化不敏感,因此,FSS阵列由电学厚的SiO 2 层(石英晶片)和超薄硅构成。具有周期性孔单元的薄高导电率铝层。微加工的金属图案通过亚波长圆环和开口环谐振器的组合而成形。实验结果和预测的光谱响应在0.1-0.5 THz的频率范围内显示出良好的一致性。

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  • 来源
    《Electronics Letters》 |2013年第22期|1398-1399|共2页
  • 作者单位

    Key Lab of Microwave Remote Sensing, Centre for Space Science and Applied Research, Chinese Academy of Sciences, Beijing 100190, People's Republic of China|c|;

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  • 正文语种 eng
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