| 一种反射面天线机电耦合分析的新方法 |
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| 引用本文： | 兰佩锋,仇原鹰,邵晓东.一种反射面天线机电耦合分析的新方法[J].系统工程与电子技术,2009,31(2):296-299. |
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| 作者姓名： | 兰佩锋 仇原鹰 邵晓东 |
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| 作者单位： | 西安电子科技大学机电工程学院, 陕西, 西安, 710071 |
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| 摘 要： | 提出了一种反射面天线机电耦合分析的新方法.该方法基于反射面天线的结构分析,利用变形反射面单元的节点位移信息得到变形后的反射面的网格模型.在此基础上,通过使用物理光学法直接计算出变形反射面天线辐射场.该方法与现有分析方法相比,能够更真实地描述出天线变形对其电磁性能的影响.通过对7.3 m抛物面天线的仿真,验证了该方法的有效性.
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| 关 键 词： | 反射面天线 有限单元法 物理光学法 机电耦合 结构位移场 电磁场 |
| 收稿时间： | 2007-10-17 |
| 修稿时间： | 2008-05-27 |
Novel approach to electromechanical coupling analysis of reflector antennas |
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| LAN Pei-feng,QIU Yuan-ying,SHAO Xiao-dong.Novel approach to electromechanical coupling analysis of reflector antennas[J].System Engineering and Electronics,2009,31(2):296-299. |
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| Authors: | LAN Pei-feng QIU Yuan-ying SHAO Xiao-dong |
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| Institution: | School of Mechano-Electronic Engineering, Xidian Univ., Xi'an 710071, China |
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| Abstract: | A novel approach to the electromechanical coupling analysis of reflector antennas is presented.Based on the structural analysis of the reflector antenna,a mesh model of the distorted reflector is obtained through the node displacement of elements of the distorted reflector.Moreover,the radiation field of the distorted reflector antenna is calculated by the physical optics method.This method reveals the effect of the reflector distortion on the electromagnetic performance more factually comparing with the traditional methods.The simulation on a 7.3 m parabolic antenna validates the effectiveness of the approach. |
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