| 幅相误差对阵列天线相位中心的影响分析 |
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| 引用本文： | 陈曦,杨龙,吴丹,傅光. 幅相误差对阵列天线相位中心的影响分析[J]. 电波科学学报, 2016, 31(6): 1195-1201. DOI: 10.13443/j.cjors.2016012701 |
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| 作者姓名： | 陈曦 杨龙 吴丹 傅光 |
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| 作者单位： | 1.西安电子科技大学 天线与微波技术重点实验室, 西安 710071 |
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| 基金项目： | 国家自然科学基金(61601351)，中央高校基本业务费(JB160201) |
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| 摘 要： | 为精确预测阵列天线相位中心的特性, 研究了阵列口径的幅相误差对阵列天线相位中心的影响.对阵列天线相位中心的求解方法进行了简要论述, 得出了阵列天线相位中心的计算方法; 采用该方法对一个算例阵列进行仿真计算, 分别引入均匀分布和正态分布的幅相误差, 计算得出不同类型幅相误差造成的天线相位中心变化.分析计算结果可以得出, 幅相误差对阵列天线相位中心可造成显著影响, 并且该影响与幅相误差分布类型和误差限有关.该研究结论可用于指导高精度阵列天线的设计.
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| 关 键 词： | 阵列天线 相位中心 幅相误差 均匀分布 正态分布 |
| 收稿时间： | 2016-01-27 |
Effect analysis of amplitude and phase error on phase center of array antenna |
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| Affiliation: | 1.Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi'an 710071, China2.Collaborative Innovation Center of Information Sensing and Understanding at Xidian University, Xi'an 710071, China |
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| Abstract: | The effect of the amplitude and phase error on the phase center of array antenna is investigated in the paper.Firstly,the method of calculating phase center of array antenna is briefly presented.The phase center of array antenna can be calculated accurately according to the phase distribution in the far field.Secondly,the simulation based on the proposed method is carried out on an example array with amplitude and phase error of uniform and Gaussian distribution,and the variation of the phase center on different error distribution is acquired.The calculating results indicate that the amplitude and phase error of the array antenna can make an obvious effect on its phase center,moreover,the effect is closely related to the type of the error distribution and the error limit.The conclusion can be used in designing high-precision array antenna. |
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| Keywords: | array antennas phase center amplitude and phase error uniform distribution Gaussian distribution phase error uniform distribution Gaussian distribution |
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