Unsplit-field higher-order nearly PML for arbitrary media in EM simulation

• 作者: JIANG Haolin XIE Yongjun WU Peiyu ZHANG Jianfeng NIU Liqiang
• 来源期刊: 系统工程与电子技术（英文版）
• 年，卷（期）: 2021,（1）
• 所属期刊栏目: ELECTRONICS TECHNOLOGY
• 页码范围: 1-6
• 页数: 6页
• 语种: 英文
• DOI: 10.23919/JSEE.2021.000001

摘要

An unsplit-field higher order nearly perfectly matched layer (NPML) based on the auxiliary differential equation app-roach is introduced in three-dimensional finite-difference time-domain lattices. The proposed scheme has the advantage of both the NPML scheme and the higher order concept in terms of the improved absorbing performance and considerable compu-tational efficiency. By incorporating with the generalized material independent concept, the proposed implementation is indepen dent of the material's type. Thus, it has the advantages of ter-minating arbitrary media without changing the updated equa-tions in the PML regions. Its effectiveness and efficiency is fur-ther demonstrated through numerical examples.