Hilbert分形天线及其全波分析

王宏建; 高本庆

Hilbert分形天线及其全波分析

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出版历程
- 收稿日期: 2001-11-03
- 修回日期: 2002-06-21
- 刊出日期: 2003-06-19

The Hilbert fractal antenna and its full wave analysis

摘要

摘要: 该文采用全波 FDTD分析方法对Hilbert分形天线进行分析。输入阻抗的计算结果验证了分形天线结构自相似性导致电特性的频率周期性变化这一规律。所得结果与有关实验数据吻合较好。研究结果还表明Hilbert分形天线具有缩小天线结构尺寸的优点，相对于一般振子天线来说结构尺寸大大缩小，文中分形天线长度缩小为相应偶极天线的1/7。对Hilbert分形天线而言其维数越高，天线尺寸缩小越大，但相邻分形阶数缩小幅度越来越小，同时对其方向图的全波分析说明Hilbert分形天线同振子天线的性能基本相似，方向图在谐振频段内基本保持不变。
- Hilbert分形; 天线; 时域有限差分法（FDTD）
Abstract: The full wave FDTD method is used to analysis some Hilbert fractal antenna. The computational results are in good agreement with the experiment, in the document. The results show that Hilbert fractal geometries can be implemented to miniaturize the size of the antenna, too. The reduction level of the Hilbert fractal antenna is about 6/7, at the same time, the higher the fractal order, the more reduction of the antenna size. Furthermore, the far field pattern remain almost the same at the resonant frequencies.

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参考文献(1)

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