| The transient scattering mechanism of dipole array with reflector |
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| 引用本文： | 张雪芹,王均宏,李增瑞. The transient scattering mechanism of dipole array with reflector[J]. 中国物理 B, 2008, 17(2): 608-617 |
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| 作者姓名： | 张雪芹 王均宏 李增瑞 |
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| 作者单位： | Key Laboratory of All Optical Network &Advanced Telecommunication Network, Ministry of Education, Beijing 100044, China;Institute of Lightwave Technology, Beijing JiaotongUniversity, Beijing 100044, China;Key Laboratory of All Optical Network &Advanced Telecommunication Network, Ministry of Education, Beijing 100044, China;Institute of Lightwave Technology, Beijing JiaotongUniversity, Beijing 100044, China;Key Laboratory of All Optical Network &Advanced Telecommunication Network, Ministry of Education, Beijing 100044, China;Institute of Lightwave Technology, Beijing JiaotongUniversity, Beijing 100044, China |
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| 基金项目： | Project supported by theFoundations of Beijing Jiaotong University and the ScientificResearch Foundation for the Returned Overseas Chinese Scholars,State Education Ministry. |
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| 摘 要： | The transient backscattering mechanisms of a dipole array with reflector have been investigated from different aspects： time-domain, frequency-domain, and combined time-frequency domain, using 4 × 8 dipole arrays with reflector as an example. The data of scattering from the arrays under the incidence of Gaussian pulses are obtained by finite differential time domain method. The influences of the array structural parameters, incident wave parameters, and incident angles on the waveforms, spectrum, and time-frequency representations of the backscattered fields of the arrays are analysed and conclusions are drawn. From these characteristics and conclusions, it is possible to deduce the array structure inversely from the backscattered field.
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| 关 键 词： | 偶极数组 反射物 散射 时间定义域 |
| 收稿时间： | 2007-05-08 |
| 修稿时间： | 2007-08-28 |
The transient scattering mechanism of dipole array with reflector |
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| Zhang Xue-Qin,Wang Jun-Hong and Li Zeng-Rui. The transient scattering mechanism of dipole array with reflector[J]. Chinese Physics B, 2008, 17(2): 608-617 |
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| Authors: | Zhang Xue-Qin Wang Jun-Hong Li Zeng-Rui |
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| Affiliation: | Key Laboratory of All Optical Network &Advanced Telecommunication Network, Ministry of Education, Beijing 100044, China;Institute of Lightwave Technology, Beijing JiaotongUniversity, Beijing 100044, China |
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| Abstract: | The transient backscattering mechanisms of a dipole array withreflector have been investigated from different aspects: time-domain,frequency-domain, and combined time-frequency domain, using $4times8$ dipole arrays with reflector as an example. The data of scatteringfrom the arrays under the incidence of Gaussian pulses are obtainedby finite differential time domain method. The influences of thearray structural parameters, incident wave parameters, and incidentangles on the waveforms, spectrum, and time-frequency representationsof the backscattered fields of the arrays are analysed andconclusions are drawn. From these characteristics and conclusions, itis possible to deduce the array structure inversely from thebackscattered field. |
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| Keywords: | dipole array reflector scattering time domain |
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