| 太赫兹时域频谱仪用宽带光导天线的研究 |
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| 引用本文： | 王自成,谢文球,刘青伦,唐伯俊,李现霞.太赫兹时域频谱仪用宽带光导天线的研究[J].电子器件,2014,37(5). |
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| 作者姓名： | 王自成 谢文球 刘青伦 唐伯俊 李现霞 |
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| 作者单位： | 中科院电子所 |
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| 摘 要： | 采用大型电磁计算软件CST对一种现有的偶极子型光电导天线的方向性进行仿真计算。结果表明，这种偶极子型光电导天线或最大辐射方向随着频率的变化而发生显著变化，方向性比较差，造成其在应用于太赫兹时域频谱仪时效率低下，且对环境存在电磁污染的问题。本文的研究方法可以用于研究新的光电导天线，从而改进太赫兹时域频谱仪用光电导天线的性能。
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| 关 键 词： | 太赫兹 时域频谱仪 偶极子型光电导天线 电磁场计算机模拟 |
An study on photoconducting dipole antennas for TDS |
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| Abstract: | A photoconducting dipole antennas reported by antecedent authors is calculated by CST for its directivity, showing the direction of the main lobe changes obviously v.s. frequency. As a result, the antennas has very low efficiency and has the risk of polluting the environment when it is used in terahertz time domain spectroscopy(TDS). The method proposed in the paper may be used investigated new photoconducting dipole antennas for TDS. |
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