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A finite‐difference time‐domain approach to waveguide discontinuities using one‐dimensional modal perfectly matched layer based on diagonally anisotropic material
Author(s) -
Jung KyungYoung,
Ju Saehoon,
Kim Hyeongdong
Publication year - 2000
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/1099-047x(200007)10:4<264::aid-mmce7>3.0.co;2-3
Subject(s) - perfectly matched layer , finite difference time domain method , classification of discontinuities , discontinuity (linguistics) , waveguide , modal , diagonal , anisotropy , microwave , materials science , optics , mathematics , physics , mathematical analysis , geometry , computer science , telecommunications , composite material
In this paper, one‐dimensional modal perfectly matched layer (PML) is applied to improve the computational efficiency in waveguide discontinuity problems. The proposed PML formulation is based on an anisotropic medium. A WG‐90 rectangular waveguide with a thick asymmetric iris is analyzed via FDTD simulations with Berenger's PML and the proposed one. Numerical results show that the computational efficiency is significantly improved by the new method. © 2000 John Wiley & Sons, Inc. Int J RF and Microwave CAE 10: 264–270, 2000