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MLFMA/VIE矩量法快速分析介质天线罩的电磁性能 被引量：5

Analyzing the EM Characteristics of Dielectric Radomes by MLFMA/VIE Moment Method
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摘要 采用体积积分方程矩量法(VIE-MoM)结合多层快速多极子算法(MLFMA)解决任意形状多层非均匀介质天线罩电磁性能的快速精确分析问题。首先借助三维CAD软件几何建模技术及网格离散技术,建立了介质天线罩的实体模型并用四面体单元离散,接着利用MLFMA/VIE-MoM在介质区域内建立矩阵方程,计算出天线罩罩体区域的体极化电流,最终得到在罩体影响下的天线的远场辐射特性和功率传输效率。数值结果表明,采用VIE-MoM结合MLFMA来分析复杂结构介质天线罩电磁性能可明显节省内存需求,提高计算效率和计算精度。 The fast algorithms are implemented in the method of moment （ MoM ） based on volume integral equation （VIE） to solve the electromagnetic problems of complex dielectric radome with arbitrary shape and multi-layers materials fast and accurately. Firstly, the geometry of conic, tangent ogive and Von Kannan radomes are modeled quickly and then meshed by tetrahedron with the help of 3 dimensional CAD efficiently. Then the coefficients of electric flux density in the dielectric region are solved by MLFMA/VIE-MoM. Finally the far field radiation characteristics of wire and aperture antennas in the presence of the radomes are investigated. Numerical results show that using MLFMA/VIE-MoM to analyze EM characteristics of the complex dielectric radomes can greatly reduce the required memory units of computer and improve the efficiency and precision.
作者 王文博 徐金平
机构地区 东南大学毫米波国家重点实验室
出处 《微波学报》 CSCD 北大核心 2009年第2期15-18,共4页 Journal of Microwaves
基金 国家自然科学基金委创新群体基金(60621002)
关键词 体积积分方程 多层快速多极子算法 介质天线罩 Volume integral equation, MLFMA,Dielectric radome
分类号 TN820.81 [电子电信—信息与通信工程]
  • 相关文献

参考文献7

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二级参考文献4

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共引文献2

同被引文献34

  • 1荆江,张昱煜,徐银芳,邓刚.高超声速飞行器毫米波天线罩电气性能研究[J].微波学报,2015,31(1):50-54. 被引量：5
  • 2Warren L Stutzman,Gary A Thiele.天线理论与设计[M].朱守正,安同一,译.北京:人民邮电出版社,2006.
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  • 6Zhang M, Li L, Ma A. Analysis of scattering by a large array of waveguide-fed wide-slot millimeter wave antennas using precorrected-FFT algorithm[J]. IEEE Transactions on Antennas and Propagation, 2005, 15( 11 ) : 772-774.
  • 7Nie X C, Li L W, Yuan N, et al. Precorrected-FFT solution of the volume integral equation for 3-D inhomogeneous dielectric objects [ J ]. IEEE Transactions on Antennas and Propagation, 2005, 53( 1 ) : 313-320.
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引证文献5

二级引证文献7

微波学报
2009年 第2期

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