基于光束传播法，对几种只沿纵向变化的锥形过渡波导的传输特性进行了分析。
The propagation characteristics of several kinds of laterally tapered transitional waveguides are analyzed using the beam propagation method(BPM).
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。
The Domain Decomposition Method(DDM) in conjunction with FDFD and Modes Expansion was used to analyze the discontinuity of the rectangular recangular waveguide.
本文中提出了一种基于对称性算子综合波导元件的新方法。
A new method for synthesis of waveguide devices on the basis of symmetry operators is presented.
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