摘要
用矩量法、预条件共轭梯度法和快速傅立叶变换相结合的混合技术来快速计算介质基片上导体带的TM散射。在这个问题的矩量法计算中，构造阻抗矩阵要耗费大量的CPU时间。这里着重考虑了缩短阻抗矩阵填充时间的方法，提出了按周期分段积分法来处理所涉及的高振荡性Sommerfeld积分．使阻抗矩阵的填充时间大大缩短。
Abstract: The mixed technique of moment method, preconditioned conjugate gradient method and fast fouriestransform is applied to deal with the TM scattering by conducting strips right on a dielectiric slab. In the MOMcomputation of the problem, building the impedance matrix can be a very time-consuming process. Here we considerhow the time taken by forming the impedance matrix can be reduced. A method, integration by segmemts in period.is presented to evaluate oscillatory Sommerfeld integrals, which considerably speeds the construction of theimpedance matrix.
出处
《微波学报》
CSCD
北大核心
2002年第1期23-28,共6页
Journal of Microwaves
基金
国家杰出青年基金资助项目(69625102)
