摘要
运用IPO-FDTD混合法计算三维复杂腔体的电磁散射特性。该方法用物理光学选代法计算腔体前端的缓交部分,用时域有限差分法计算含有复杂结构的腔体终端。在IPO和FDTD之间场耦合中,通过提取“本底噪声”来提高数值精度。数值结果表明该方法是准确有效的。
A hybrid IPO-FDTD method is introduced in this paper. The IPO method is used to treat the front part of the cavity, which is slowly varied, while the FDTD method is used to treat the end part of the cavity, where the complex structure is involved. For the coupling between IPO with FDTD fields, the 'background noise' is picked up to improve numerical precision. The numerical results show that this method is precise and high efficient.
出处
《电波科学学报》
EI
CSCD
2003年第4期385-388,共4页
Chinese Journal of Radio Science
基金
航空科学基金资助项目(00F52047)
