| L波段径向线螺旋阵列天线的优化设计 |
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| 引用本文： | 邓遥林, 刘庆想, 李相强, 等. L波段径向线螺旋阵列天线的优化设计[J]. 强激光与粒子束, 2009, 21(10). |
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| 作者姓名： | 邓遥林 刘庆想 李相强 张健穹 |
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| 作者单位： | 1.西南交通大学 理学院, 成都 61 0031 |
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| 摘 要： | 以提高阵列天线的口径效率为目标，对辐射单元及阵列布局进行了优化，设计了中心频率为1.57 GHz的6元单圆环径向线螺旋阵列天线，采用时域有限积分算法软件对阵列天线进行了数值模拟，结果表明：口径为320 mm的该天线在中心频率上可获得14.4 dBi的增益，口径效率达99%，轴向轴比值为1.15，在1.5～1.7 GHz的频带范围内，增益大于13.9 dBi，口径效率大于97%，轴向轴比值小于1.35。
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| 关 键 词： | 阵列天线 优化设计 口径效率 时域有限积分 激励调节法 |
| 收稿时间： | 1900-01-01; |
Optimization of L-band helical array antenna fed from radial waveguide |
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| deng yaolin, liu qingxiang, li xiangqiang, et al. Optimization of L-band helical array antenna fed from radial waveguide[J]. High Power Laser and Particle Beams, 2009, 21. |
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| Authors: | Deng Yaolin Liu Qingxiang Li Xiangqiang Zhang Jianqiong |
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| Affiliation: | 1. College of Science,Southwest Jiaotong University,Chengdu 610031,China |
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| Abstract: | This paper describes a new antenna for realizing the directional radiation of helical array antenna fed from radial waveguide. The configuration parameters of the element and the layout of array antenna are optimized with the purpose of enhancing the aperture efficiency of the antenna. A circular array antenna composed of 6 elements with a frequency band of 1.5 GHz to 1.7 GHz is designed and simulated. The numerical simulation shows that at 1.57 GHz, the aperture efficiency reaches 99%, and the axial ratio at the normal direction is 1.15. In the range of 1.5 GHz to 1.7 GHz, the aperture efficiency is greater than 97%, the axial ratio is less than 1.35. |
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| Keywords: | optimization aperture efficiency time domain finite integral excitation adjustment method |
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