| 矩量法结合渐近波形估计分析对数周期天线 |
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| 引用本文： | 程勇,曹伟. 矩量法结合渐近波形估计分析对数周期天线[J]. 南京邮电大学学报(自然科学版), 2005, 25(2): 67-70 |
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| 作者姓名： | 程勇 曹伟 |
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| 作者单位： | 南京邮电学院,通信工程系,江苏,南京,210003 |
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| 摘 要： | 应用渐近波形估计技术与矩量法相结合,分析了一种对数周期天线的电气特性。采用这种方法可以在很宽的频带中只取少量频点利用矩量法计算,再在整个频带进行Pade逼近就可获得天线的频率特性。从而节省了分析电磁问题时的计算时间和内存要求。采用这个方法与矩量法算出的结果进行了比较,它们之间良好的一致说明了本方法的正确性和有效性。
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| 关 键 词： | 矩量法 渐近波形估计技术 天线 |
| 文章编号： | 1000-1972(2005)02-0067-04 |
| 修稿时间： | 2004-06-17 |
Analysis of LPDA Using Method of Moments in Conjunction with Asymptotic Waveform Evaluation Technique |
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| CHENG Yong,CAO Wei. Analysis of LPDA Using Method of Moments in Conjunction with Asymptotic Waveform Evaluation Technique[J]. JJournal of Nanjing University of Posts and Telecommunications, 2005, 25(2): 67-70 |
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| Authors: | CHENG Yong CAO Wei |
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| Affiliation: | CHENG Yong,CAO WeiDepartment of Communication Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | A numerical method of analyzing log periodic antenna(LPDA) is presented in this paper. It uses the method of moments(MoM) in conjunction with the asymptotic waveform evaluation technique. The antenna is calculated only at a few frequency points, then matched via the pade approximation to obtain the frequency characteristic. It therefore reduces both the computation time and storage requirement. Some wire antennas are analyzed by means of this method and the calculated results are compared with those obtained by a conventional method of moments. |
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| Keywords: | Method of moments Asymptotic waveform evaluation technique Wire antennas |
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