| 晴空环境下的地基面天线多场耦合分析及试验 |
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| 引用本文： | 李鹏,王伟,郑飞,周生怀,原彪.晴空环境下的地基面天线多场耦合分析及试验[J].宇航学报,2010,31(7). |
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| 作者姓名： | 李鹏 王伟 郑飞 周生怀 原彪 |
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| 作者单位： | 1. 西安电子科技大学机电工程学院,西安,710071
2. 中国电子科技集团西北电子设备研究所,西安,710065 |
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| 摘 要： | 大口径高频段的地基面天线在晴空环境下的热变形对电性能影响明显.针对这一问题,首先建立晴空环境的温度场分析模型,利用ANSYS软件分析得到面天线温度场并计算结构变形;其次利用某7.3 m卡式天线设计了温度试验,结果表明温度场分析模型是有效的;再次根据天线远区的电场公式计算电性能,结合温度场和结构位移场的公式建立了地基面天线的多场耦合模型;最后将该耦合模型应用于实际工程的某40 m地基面天线,得到的分析结果有实际指导意义.
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| 关 键 词： | 面天线 多场耦合 晴空环境 温度试验 |
Multi-Field Coupling Analysis and Experiments of Ground Reflector Antennas under Clear-Day Solar Radiation |
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| LI Peng,WANG Wei,ZHENG Fei,ZHOU Sheng-huai,YUAN Biao.Multi-Field Coupling Analysis and Experiments of Ground Reflector Antennas under Clear-Day Solar Radiation[J].Journal of Astronautics,2010,31(7). |
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| Authors: | LI Peng WANG Wei ZHENG Fei ZHOU Sheng-huai YUAN Biao |
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| Institution: | LI Peng1,WANG Wei1,ZHENG Fei1,ZHOU Sheng-huai2,YUAN Biao1(1.Dept. Electromechanical Engineering,Xidian University,Xi'an 710071,China,2.The Northwest China Research Institute of Electronic Equipment,Xi'an 710065,China) |
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| Abstract: | Thermal-structural deformation caused by clear-day solar radiation will effect the electrical parameters of ground reflector antennas. For this problem,temperature field analysis model is proposed firstly. The temperature and the structure deformation of antenna could be obtained with ANSYS software. Secondly,a temperature experiment has been designed via a 7.3 m reflector antenna. Results of the experiment indicate that,the temperature model is valid. Thirdly,electrical parameters of antenna are calculated... |
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| Keywords: | Reflector antennas Multi-field coupling Clear-day solar radiation Temperature experiment |
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