| 用UTD-MOM混合法有效分析大型平面阵列天线的辐射特性 |
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| 引用本文： | 钱玫,唐凌凌.用UTD-MOM混合法有效分析大型平面阵列天线的辐射特性[J].雷达科学与技术,2005,3(2):115-118. |
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| 作者姓名： | 钱玫 唐凌凌 |
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| 作者单位： | 西安电子科技大学电子工程学院,陕西,西安,710071;武警工程学院,陕西,西安,710086 |
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| 摘 要： | 采用矩量法(MOM)结合一致性几何绕射理论(UTD)来分析和计算大型平面阵列天线的辐射特性。大型天线阵列含有很多的辐射单元，单独应用矩量法求解时，未知数太多，计算速度慢。而应用MOM-UTD混合方法，未知数的数量大大少于单独用矩量法时的未知数的数量。本文以振子组成的平面阵列为例，说明该方法如何应用。最后给出了数值解的结果，并与单独用矩量法得到的结果进行了比较。比较表明，该方法是有效的、准确的。
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| 关 键 词： | 矩量法 一致性几何绕射理论 大型平面阵列 |
| 文章编号： | 1672-2337(2005)02-0115-04 |
| 修稿时间： | 2004年6月8日 |
A Hybrid UTD-MOM for Efficient Analysis of Electromagnetic Radiation from Large Planar Arrays |
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| Qian Mei,TANG Ling-ling.A Hybrid UTD-MOM for Efficient Analysis of Electromagnetic Radiation from Large Planar Arrays[J].Radar Science and Technology,2005,3(2):115-118. |
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| Authors: | Qian Mei TANG Ling-ling |
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| Abstract: | A hybrid uniform geometrical theory of diffraction (UTD)-moment method (MOM) approach is introduced to provide an efficient analysis of the electromagnetic radiation from electrically large, planar arrays. Electrically large arrays contain many antenna elements, so the number of unknown array currents is large, and the MOM approach is become inefficient. In the present hybrid UTD-MOM approach, the number of unknown currents to be solved is drastically reduced as compared to in the conventional MOM approach. The utility of the hybrid approach is demonstrated here for the case of a large planar array of dipoles. Some numerical results are presented to illustrate the efficiency and accuracy of this hybrid method. |
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| Keywords: | MOM(moment method) UTD(uniform geometrical theory of diffraction)) large planar array |
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