| TEM喇叭天线阵列辐射特性研究 |
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| 引用本文： | 廖勇,孟凡宝,周海京,杨周炳,马弘舸,李科,谢平.TEM喇叭天线阵列辐射特性研究[J].绵阳师范学院学报,2003,22(2):45-49. |
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| 作者姓名： | 廖勇 孟凡宝 周海京 杨周炳 马弘舸 李科 谢平 |
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| 作者单位： | 1. 中国工程物理研究院应用电子学研究所,四川,绵阳,621900
2. 北京应用物理与计算数学研究所,北京,100088 |
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| 摘 要： | 应用FDTD方法分析TEM喇叭天线阵列的瞬态辐射特性，分析了阵列单元之间的互耦对天线阵列远场辐射的影响。TEM喇叭天线阵列单元沿E面叠状排列可以改善阵列的低频辐射。原理上阵元越多，天线阵列的增益越高。而线性阵列只压缩一个面的方向图。改变阵列单元间馈入信号的时延，可以实现阵列方向图主辩方向的偏移。用半TEM喇叭天线组成槽状排列二元线阵和四元线阵，进行了相应的原理性实验，实验结果与理论数值模拟基本一致。
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| 关 键 词： | TEM喇叭天线阵列 瞬态辐射特性 FDTD 信号 时域有限差分 |
| 文章编号： | 1672-612x(2003)02-0045-05 |
| 修稿时间： | 2003年3月8日 |
Transient Radiation Analysis of TEM - horn Arrays |
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| Liao Yong ,Men Fan bao ,Zhou Hai jing ,Yang Zhou bin ,Ma Hong ge ,Li Ke ,Xie Ping.Transient Radiation Analysis of TEM - horn Arrays[J].Journal of Mianyang Normal University,2003,22(2):45-49. |
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| Authors: | Liao Yong Men Fan bao Zhou Hai jing Yang Zhou bin Ma Hong ge Li Ke Xie Ping |
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| Institution: | Liao Yong 1,Men Fan bao 1,Zhou Hai jing 2,Yang Zhou bin 1,Ma Hong ge 1,Li Ke 1,Xie Ping 1 |
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| Abstract: | In this paper, the radiation of transverse electron-magnetic (TEM) born antenna arrays is analyzed by FDTD method. The mutual coupling influence between the elements to far-field radiation is analyzed. The radiation performance at lower frequencies can be improved by the stacked TEM-horn configuration. Increasing the number of arrays can compress the pattern of plane in which the arrays lie and increase the gain of arrays. The beam radiated from a transient array could be steered by properly timing input signals which fed to individual elements. Experiments of TEM-horn array verified the result of FDTD simulation. |
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| Keywords: | FDTD method TEM-horn array pattern |
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