| 阵列天线近场校准方法及在波束形成中的应用 |
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| 引用本文： | 杨雷明,李强,孙广俊.阵列天线近场校准方法及在波束形成中的应用[J].火控雷达技术,2014(2):99-103. |
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| 作者姓名： | 杨雷明 李强 孙广俊 |
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| 作者单位： | 中国电波传播研究所青岛分所,山东青岛266107 |
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| 基金项目： | 国家自然科学基金（61331012） |
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| 摘 要： | 大型相控阵天线阵列由于天线口径很大,给天线远场测试带来很多困难,天线近场测试方法可以有效解决这类问题。本文在实际工程中利用天线近场测试方法对大型天线阵列的幅相误差进行了测试及校准。试验结果表明,此方法可以用于评估阵列天线的一致性。波束形成后,相对于接收机闭环校准,天线误差校准可以明显降低旁瓣,并且测角偏差明显减少,在短波低频段表现尤为突出。
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| 关 键 词： | 天线近场测试方法 幅相误差 波束形成 天线校准 闭环校准 |
Method of Calibrating Array Antenna in Near Field and Its Application in Beam-forming |
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| Yang Leiming,Li Qiang,Sun Guangjun.Method of Calibrating Array Antenna in Near Field and Its Application in Beam-forming[J].Fire Control Radar Technology,2014(2):99-103. |
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| Authors: | Yang Leiming Li Qiang Sun Guangjun |
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| Affiliation: | (Qingdao Branch of China Research Institute of Radiowave Propagation,Qingdao 266107) |
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| Abstract: | Testing antenna in far field is much more difficulty since its big antenna caliber of large scale phased array antenna, and this can be effectively solved by using method of testing antenna in near field. The amplitude and phase error on large scale antenna array is tested and calibrated by using method of testing antenna in near fields in practical engineering application. The test results show that this method can be used to evaluate amplitude and phase consistency of array antenna. In respect to closed-loop calibration of the receiver, the antenna error calibration can distinctly reduce side lobes after beam-forming, and the angle measurement deviation decreases obviously, especially in the low frequency band of shortwave. |
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| Keywords: | antenna near field testing method amplitude-phase error beam-forming antenna calibration closed-loop calibration |
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