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一种采用边界检测的自适应区域分解时域有限差分方法 被引量：3

An Adaptive Domain Decomposition FDTD Method Using Boundary Detection
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摘要 提出了一种采用边界检测的自适应区域分解时域有限差分(FDTD)方法:将待解问题分解为若干独立的子区域;在各个子区域之间通过连接边界条件,进行自适应检测;当检测到波传播至检测边界上时,相应子区域被激活,并进行传统的FDTD迭代计算,否则,该子区域将不参与场值迭代.通过这样一种边界检测信息传递方案,把各个子区域联系起来,获得原问题的解.实际仿真结果表明,这种方法在解决复杂问题和加快计算时间方面是有效的. An extension of the classical boundary detection method, is proposed FDTD, adaptive domain-decomposition FDTD （ADD-FDTD） using a to solve multiple sub-region problems. In ADD-FDTD, the problem domain is divided into several independent FDTD sub-regions. A boundary condition is applied to boundaries between sub-regions with adaptive detection. In each sub-region, FDTD iteration is activated only if the propagated wave reaches its boundary, otherwise no calculation is performed. Simulation results show that ADD-FDTD is efficient in both computational complexity and computational time.
作者 张华 洪伟 郝张成 崔铁军
机构地区 东南大学无线电工程系毫米波国家重点实验室
出处 《应用科学学报》 CAS CSCD 北大核心 2005年第5期493-496,共4页 Journal of Applied Sciences
基金 国家"863"高技术研究发展计划(2002AA123031) 国家杰出青年科学基金(60225001) 海外青年合作研究基金资助项目(60028101)
关键词 自适应边界检测 区域分解 时域有限差分法 adaptive boundary testing domain decomposition finite-difference time-domain
分类号 TN015 [电子电信—物理电子学]
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参考文献10

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  • 3Xu Feng, Hong Wei. Domain decomposition FDTD algorithm for the analysis of a new type of E-plane sectorial horn with aperture field distribution optimization [ J ]. IEEE Transactions on Antenna and Propagation, 2004, 52 ( 2 ):426 - 434.
  • 4Xu Feng, Hong Wei, Zhu Xiaowei. A new time domain near field to far field transformation for FDTD in two dimension [ A ]. IEEE MTT-S Symposium Digest [ C ].2002. 2057 - 2060.
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同被引文献33

  • 1张华,洪伟,郝张成.求解三维电磁问题的自适应区域分解FDTD方法[J].电波科学学报,2006,21(3):397-402. 被引量：7
  • 2YEE K S.Numerical solution of initial boundary value problems involving Maxwell's equations in isotropic media[J].IEEE Transactions Antennas Propagation,1966,14(5):302-307.
  • 3Xu Feng,HONG Wei.Domain decomposition FDTD algorithm for the analysis of a new type of E-plane sectorial horn with aperture field distribution optimization[J].IEEE Transactions on Antenna and propagation,2004,52(2):426-434.
  • 4Xu Feng,HONG Wei,ZHU Xiaowei.A new time domain near field to far field transformation for FDTDin two dimension[C]//IEEE MTT-S International Microwave Symposium Digest.2002:2057-2060.
  • 5XU Feng,HONG Wei.Analysis of two dimensions sparse multicylinder scattering problem using DDFDTD method[J].IEEE Transactions on Antenna and Propagation,2004,52(10):2612-2617.
  • 6WANG Jiaying,GAO Benqing.A hybrid method on calculating EM coupling in large problem space[C[//International Symposium on Electromagnetic Compatibility Proceedings,1997:442-445.
  • 7XUE Zhenghui,GAO Benqing,LIU Ruixiang.YANG Shiming.Space-divided FDTD method[C]//International Symposium on Electromagnetic Compatibility Proceedings,1999:568-571.
  • 8JOHNSON J M,YAHYA R S.Multiple region FDTD(MR/FDTD)and its application to microwave analysis and modeling[C]//IEEE MTT-S Symposium Digest,1996:1475-1478.
  • 9JOHNSON J M,YAHYA R S.MR/FDTD:a multipleregion finite difference time domain method[J].Microwave and Optical Technology Letters,1997,14(2):101-105.
  • 10XU Feng,WU Ke,HONG Wei.Domain decomposition FDTD algorithm combined with numerical TL calibration technique and its application in parameter extraction of substrate integrated circuits[J].IEEE Transactions on Microwave Theory and Techniques,2006,54(1):329-338.

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应用科学学报
2005年 第5期

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