Using the finite element approximation of electromagnetic wave propagation problem in frequency domain analysis, we have developed and implemented a finite element model of a terahertz substrate-based wire grid polarizer in a form of unit cell. The proposed polarization unit cell is considered as a waveguide with a specific boundary condition. The model is implemented by the COMSOL software system as a ready to use tool for terahertz polarizers design or refinement. Simulation results show an excellent agreement with known experimental and simulation data.

中文翻译：

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太赫兹基线栅偏振器的有限元模型

使用频域分析中电磁波传播问题的有限元逼近，我们已经开发并实现了以晶胞形式的基于太赫兹基板的线栅偏振器的有限元模型。提出的极化单位单元被认为是具有特定边界条件的波导。该模型由COMSOL软件系统实现，可作为太赫兹偏振片设计或优化的现成工具。仿真结果表明与已知的实验和仿真数据具有极好的一致性。