An Analysis of Liao’S Absorbing Boundary Condition

R. L. Wagner, W. C. Chew

Research output: Contribution to journalArticlepeer-review


A theoretical and numerical analysis of Liao’s absorbing boundary condition (ABC) is presented. The form of the ABC is related to both space-time polynomial extrapolation and a one-way wave equation. A modification allowing the optimization of the ABC for specific angles of incidence or wave speeds is discussed. The stability of the ABC is also discussed, and a technique is presented for enhancing stability. Numerical results are presented to demonstrate the stability and accuracy of the ABC.

Original languageEnglish (US)
Pages (from-to)993-1009
Number of pages17
JournalJournal of Electromagnetic Waves and Applications
Issue number7-8
StatePublished - 1995
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Physics and Astronomy
  • Electrical and Electronic Engineering


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