| 基于等效磁流的近场诊断方法 |
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| 引用本文： | 胡鸿飞 傅德民 等. 基于等效磁流的近场诊断方法[J]. 西安电子科技大学学报(自然科学版), 2001, 28(1): 52-57 |
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| 作者姓名： | 胡鸿飞 傅德民 等 |
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| 作者单位： | [1]西安电子科技大学天线与电磁散射研究所，陕西西安710071 [2]西安电子科技大学天线与电磁散射研究所，陕西西安71 |
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| 基金项目： | 天线与微波技术国家重点实验室开放课题基金资助项目(99JS07.3.1) |
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| 摘 要： | 研究了一种由平面近场测量数据确定天线口径场幅相分布的新方法，该诊断方法基于等效磁流，通过引入矩量法，把天线近场-口径场变换的问题转化为矩阵方程的求解问题，给出了求解矩阵方程最小二乘解的奇异值分解迭代算法，通过数值模拟及与相关文献方法比较，说明了这种方法的正确性、有效性和工程实用性。
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| 关 键 词： | 近场测量 平面波谱 等效磁流 矩量法 天线 口径场幅相分布 |
| 文章编号： | 1001-2400(2001)01-0052-05 |
| 修稿时间： | 2000-03-21 |
A near-field diagnosticmethod based on equivalent magnetic currents |
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| HU Hong fei,FU De min,LI Yong. A near-field diagnosticmethod based on equivalent magnetic currents[J]. Journal of Xidian University, 2001, 28(1): 52-57 |
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| Authors: | HU Hong fei FU De min LI Yong |
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| Abstract: | A new method is presented for determining amplitude and phase distribution over the aperture of the AUT in terms of the planar near field measurements, which is based on equivalent magnetic currents with an introduction of moment method procedures to convert the transformation of the AUT from near field to aperture field into the solution of matrix equations. A least squares solution via the singular value decomposition iterative algorithm is given to solve the matrix equations. Compared with the related literature the present method proves to be accurate, effective and practical by the use of detailed numerical simulation and an experimental test. |
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| Keywords: | near field measurement planar spectrum equivalent magnetic current MOM |
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