| 带直角反射器的太赫兹等离子体-金属混合天线 |
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| 引用本文： | 宋哲,刘玉宝,赵欣悦,阮久福,尹治平.带直角反射器的太赫兹等离子体-金属混合天线[J].强激光与粒子束,2018,30(6):063101-1-063101-5. |
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| 作者姓名： | 宋哲 刘玉宝 赵欣悦 阮久福 尹治平 |
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| 作者单位： | 1.合肥工业大学 光电技术研究院, 合肥 230009 |
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| 基金项目： | 国家自然科学基金项目61501166 |
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| 摘 要： | 为了满足可工作于太赫兹频段以及较好的方向性和高增益的需求，在等离子体天线的基础上提出了新型等离子体-金属混合八木天线，在其中将反射振子替换为夹直角反射板。根据等离子体天线及八木天线设计理论，设计了该天线的结构并初步确定了其结构参数。通过电磁仿真研究了不同天线-顶点间距情况下天线的回波损耗、增益、电压驻波比和辐射方向图，最终实现了结构参数优化。与不带反射板的天线的对比结果表明，该结构具有更高的增益与更优的前后比。
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| 关 键 词： | 等离子体 八木天线 反射板 方向图 增益 |
| 收稿时间： | 2018-01-12 |
THz hybrid metal-plasma Yagi antenna with right-angle reflector |
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| Institution: | 1.Academy of Photoelectric Technology, Hefei University of Technology, Hefei 230009, China2.School of Instrument Science and Opto-electronic Engineering, Hefei University of Technology, Hefei 230009, China3.School of Electronic Science and Applied Physics, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | A new kind of THz hybrid metal-plasma Yagi antenna has been proposed on the basis of plasma antenna to meet the requirements of good directivity and high gain, in which reflection oscillator is replaced by right-angle reflector. The structure is designed by the theory of plasma antenna and Yagi antenna, and the parameters are preliminarily determined. Then electromagnetic simulation is carried out to examine the performance parameters of the Yagi antenna, such as the return loss, gain, voltage standing wave ratio and radiation pattern, in which the condition of different distances between the vertex of angle reflector and dipole is considered. Contrasted with the antennas without angle reflector, the structure proposed in this article has much higher gain and better front-to-rear ratio. |
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