Numerical results demonstrate that the computational efficiency of this method is considerably improved compared with the traditional FDFD .

计算结果表明该方法在获取复杂结构的宽频带响应时，能大大地节省计算时间。

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Then we propose two kinds of new SPWs structures, the propagation properties of the waveguides have been studied by using the full vector FDFD.

接着设计了两种新型的表面等离子体光波导结构，采用频域有限差分法对这两种波导的传输特性进行了分析和讨论。

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The Domain Decomposition Method(DDM) in conjunction with FDFD and Modes Expansion was used to analyze the discontinuity of the rectangular recangular waveguide.

基于区域分裂法（DDM ）结合频域有限差分（FDFD）和波导模式展开求解矩形波导不连续性问题。

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