Numerical Performances of Absorbing Boundary Conditions for ADI-FDTD Method

Jiunn Nan Hwang*, Fu Chiarng Chen

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

4 Scopus citations


In this paper, the numerical performances of the Mur’s first order and perfectly matched layer (PML) absorbing boundary conditions (ABCs) for the alternating direction implicit finite-difference time-domain (ADI-FDTD) method are presented. By taking the dispersion error of the ADI-FDTD method into account, it is shown that the two ABCs have almost the same level of accuracy with large time step. A microstrip lowpass filter is studied to compare the calculation accuracy and efficiency of these two ABCs. Our study shows that the Mur’s ABC for ADI-FDTD method with large time step is more practicable due to its simplicity and efficiency.

Original languageEnglish
Pages (from-to)2723-2726
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
StatePublished - 2006
EventIEEE Antennas and Propagation Society International Symposium, APS 2006 - Albuquerque, NM, United States
Duration: 9 Jul 200614 Jul 2006


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