| 时域平面近场测量的数值分析方法 |
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| 引用本文： | 王加莹,高本庆,刘瑞祥,杨仕明.时域平面近场测量的数值分析方法[J].电子与信息学报,2000,22(3):478-484. |
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| 作者姓名： | 王加莹 高本庆 刘瑞祥 杨仕明 |
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| 作者单位： | 北京理工大学电子工程系，北京理工大学电子工程系，北京理工大学电子工程系，北京理工大学电子工程系 北京 100081，北京 100081，北京 100081，北京 100081 |
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| 摘 要： | 本文以H面喇叭为例,研究了天线时域近场的运动状态,用谱域法分析了平面近场分布状况,得出采样原则,为平面近场扫描测量提供了理论依据。介绍了时域平面近场测量的近远场变换公式,包括时域和频域两种计算途径。对各自的优点作出了探讨。运用近远场变换方法计算了时域远场和频域方向图。
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| 关 键 词： | 时域平面近场测量 时域有限差分法 谱域分析 近远场变换 |
| 收稿时间： | 1998-7-23 |
| 修稿时间： | 1999-4-19 |
NUMERICAL ANALYSIS METHOD FOR PLANAR NEAR-FIELD MEASUREMENT IN TIME DOMAIN |
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| Wang Jiaying,Gao Benqing,Liu Ruixiang,Yang Shiming.NUMERICAL ANALYSIS METHOD FOR PLANAR NEAR-FIELD MEASUREMENT IN TIME DOMAIN[J].Journal of Electronics & Information Technology,2000,22(3):478-484. |
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| Authors: | Wang Jiaying Gao Benqing Liu Ruixiang Yang Shiming |
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| Affiliation: | Department of Electronic Engineering Beijing Institute of Technology Beijing 100081 |
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| Abstract: | The movement of antenna's near-field is studied in time domain. The near field distributions are analyzed by using plane wave-spectrum method. A sampling principle is deduced for planar near-field scanning in time domain. Some methods of near-far field transfer are introduced, which can be performed through time or frequency approach. The characteristics of the two approaches are discussed. Extensive numerical results of an H-plane waveguide horn illustrate the analysis. |
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| Keywords: | Planar near field measurement in time domain Finite-difference time-domain Plane wave-spectrum Near-far fields transfer |
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