Based upon the higher order (HO) concept and the convolution perfectly matched layer (CPML) formulation, the efficient and tight HO‐CPML implementation is proposed for electromagnetic (EM) simulation. The proposed formulation has the advantages of the higher order concept and the CPML in terms of enhancing absorbing performance and improving computational efficiency. Numerical examples including the half‐space soil/metal plate structure and the patch antenna radiation model are carried out in the finite‐difference time‐domain lattice to validate the effectiveness and efficiency. It can be demonstrated that the proposed HO‐CPML can further enhance the absorbing performance compared with the CPML and enjoy considerable computational efficiency compared with the other HO‐perfectly matched layers (HO‐PMLs). Meanwhile, the proposal can terminate arbitrary mediums without changing the update equations in the PML regions.

中文翻译：

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性能增强的吸收边界条件，用于电磁建模和仿真

基于高阶（HO）概念和卷积完美匹配层（CPML）公式，提出了高效且紧密的HO-CPML实现方案，用于电磁（EM）仿真。所提出的配方在增强吸收性能和提高计算效率方面具有高阶概念和CPML的优点。在时域有限差分法中进行了包括半空间土壤/金属板结构和贴片天线辐射模型在内的数值例子，以验证有效性和效率。可以证明，与CPML相比，提出的HO‐CPML可以进一步提高吸收性能，并且与其他HO‐Perfectly匹配层（HO‐PML）相比，它具有可观的计算效率。与此同时，