| 一种新颖的树状分形超宽带天线 |
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| 引用本文： | 赵小莹, 臧洪明, 张功磊, 卢静静. 一种新颖的树状分形超宽带天线[J]. 电子与信息学报, 2015, 37(4): 1008-1012. doi: 10.11999/JEIT140816 |
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| 作者姓名： | 赵小莹 臧洪明 张功磊 卢静静 |
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| 作者单位： | 北京航空航天大学电子信息工程学院北京 100191 |
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| 基金项目： | 电子信息系统复杂电磁环境效应国家重点实验室开放课题基金，国家自然科学基金(61001002)资助课题 |
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| 摘 要： | 该文设计一种新颖的树状分形超宽带天线，该天线采用梯形结构的有限接地面。增加树状分形结构的迭代次数和优化有限接地面的形状可以使天线获得良好的阻抗匹配，进而实现天线的超宽带性能。该天线的工作频带为4.2~17.5 GHz(相对带宽为122.6%)，天线的电尺寸为0.350.35，可应用于C波段、X波段、Ku波段和超宽带(UWB)波段通信，具有广泛的应用前景。实测结果和仿真结果吻合，证明了该天线的有效性。
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| 关 键 词： | 分形天线 超宽带 阻抗匹配 树状天线 |
| 收稿时间： | 2014-06-20 |
| 修稿时间： | 2014-09-28 |
A Novel Ultra-wideband Fractal Tree-shape Antenna |
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| Zhao Xiao-Ying, Zang Hong-Ming, Zhang Gong-Lei, Lu Jing-Jing. A Novel Ultra-wideband Fractal Tree-shape Antenna[J]. Journal of Electronics & Information Technology, 2015, 37(4): 1008-1012. doi: 10.11999/JEIT140816 |
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| Authors: | Zhao Xiao-ying Zang Hong-ming Zhang Gong-lei Lu Jing-jing |
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| Abstract: | An ultra-wideband fractal antenna is proposed, which has an isosceles trapezoid ground-plane. Increasing fractal iterations and optimizing ground-plane shape can achieve a better impedance matching so as to realize Ultra-WideBand (UWB) antenna performance. The presented fractal antenna offers a -10 dB return loss bandwidth in the range of 4.2 to 17.5 GHz (relative band is 122.6%) with electrical dimension of 0.350.35. Thus, this type of antenna is suitable for C, X, Ku and UWB band communications, which may have a wide application prospect. The measured results fit well with the simulation results, and the effectiveness is validated using the measured results. |
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| Keywords: | Fractal antenna Ultra WideBand (UWB) Impedance matching Tree-shape antenna |
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