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FG-FFT算法结合近场矩阵插值快速分析电大目标宽频带电磁散射特性
Fast Analysis of Wideband EM Scattering of Electrically Large Objects by Using FG-FFT Combined with the Interpolation Technique of the Near Matrix
【作者】 孔维宾; 周后型; 郑开来; 牟星; 李卫东; 宋喆; 谢家烨; 洪伟;
【Author】 Kong weibin;Zhou houxing;Zheng kailai;Mu xing;Li weidong;Song zhe;Xie jiaye;Hong wei;State Key Laboratory of Millimeter Waves , School of Southeast University of China;
【机构】 东南大学毫米波国家重点实验室;
【摘要】 本文提出,将FG-FFT算法与近场矩阵插值技术结合用于电大尺寸目标宽频带电磁特性的分析。这个方法对于笛卡尔网格间距和展开盒子的阶都不敏感,既避免了子波中断问题,又实现了快速、精确的扫频计算。
【Abstract】 In this paper, the FG-FFT algorithm combined with the interpolation technique of the near matrix is applied to fast analysis of wideband EM scattering from electrically large objects. The proposed algorithm is not sensitive to both the grid spacing and the expansion order, both avoiding sub-wavelength break and realizing fast and accurate calculation of frequency sweep.
【Key words】 Wideband electromagnetic scattering; near matrix; interpolation technique; FG-FFT; MLFMA;
- 【会议录名称】 2015年全国微波毫米波会议论文集
- 【会议名称】2015年全国微波毫米波会议
- 【会议时间】2015-05-30
- 【会议地点】中国安徽合肥
- 【分类号】TN011
- 【主办单位】中国电子学会