| 变厚度雷达罩电磁性能仿真三种方法的比较 |
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| 引用本文： | 王振锋,张娟,张磊,杜鹏飞,岳珠峰.变厚度雷达罩电磁性能仿真三种方法的比较[J].航空计算技术,2011,41(2):25-27,32. |
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| 作者姓名： | 王振锋 张娟 张磊 杜鹏飞 岳珠峰 |
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| 作者单位： | 西北工业大学,力学与土木建筑学院,陕西,西安,710129 |
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| 基金项目： | 国家自然科学基金项目资助，国家863计划项目资助，高等学校学科创新引智计划项目资助 |
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| 摘 要： | 对机载雷达罩提出一种分段变厚度的设计思想,实现变厚度机载雷达罩的建模。分别采用低频的多层快速多极子方法（MLFMM）、高频的物理光学法（PO）及高低频相结合的物理光学混合矩量法（PO/MoM）,利用这三种方法对一个中等尺寸机载雷达天线罩在分段变厚度情况下进行远场辐射方向图的计算,通过对三者所得结果的比较得出：PO/MoM混合方法在电大尺寸雷达罩电磁性能仿真计算中所具有的优越性及机载雷达罩分段变厚度方法的可操作性。
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| 关 键 词： | 雷达罩 变厚度 电大尺寸 电磁仿真 |
Comparison of Three Electromagnetic Simulation Methods of Variable Wall Thickness Radome |
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| WANG Zhen-feng,ZHANG Juan,ZHANG Lei,DU Peng-fei,YUE Zhu-Feng.Comparison of Three Electromagnetic Simulation Methods of Variable Wall Thickness Radome[J].Aeronautical Computer Technique,2011,41(2):25-27,32. |
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| Authors: | WANG Zhen-feng ZHANG Juan ZHANG Lei DU Peng-fei YUE Zhu-Feng |
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| Institution: | (Department of Engineering Mechanics,Northwestern Polytechnical University,Xi′an 710129,China) |
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| Abstract: | Firstly,a method of piecewise variable wall thickness of airborne radome is proposed to realize its modeling.Secondly,by using three algorithm,namely,Multilevel Fast Multipole Method（MLFMM） of low frequency,Physical Optical of high frequency and Physical Optics the Method of Moments（PO/MoM） respectively,we calculate the far field of a medium-size airborne radome with piecewise variable thickness.After comparing the results,we find that the PO/MoM method have the superiority in electrical large radome′s electromagnetic simulation because its better accuracy and less memory consuming than the other two methods,it also proved the feasibility of the design thought of piecewise variable thickness for airborne radome. |
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| Keywords: | radome variable thickness electrically large electromagnetic simulation |
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