Stabilizing Liao's absorbing boundary conditions using single-precision arithmetic

M. Moghaddam, Weng Cho Chew

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The boundary conditions given by Z.P. Liao et al. (Scientia Sinica, vol. XXVII, no. 10, p. 1065, Oct. 1984) have been shown to yield excellent results in scalar as well as vector electromagnetics problems using double-precision arithmetic. However, it is more desirable to use single-precision arithmetic if possible, since the time required to perform a real, double-precision multiplication is two to three times that of a single-precision operation. But with a single-precision implementation, it is observed that the solution becomes unstable as the number of time steps grows. The authors present a procedure for remedying this problem.

Original languageEnglish (US)
Title of host publication1991 Digest
PublisherPubl by IEEE
Number of pages4
ISBN (Print)0780301447
StatePublished - Dec 1 1991
EventAntennas and Propagation Society Symposium - London, Ont, Can
Duration: Jun 24 1991Jun 28 1991

Publication series

NameAP-S International Symposium (Digest) (IEEE Antennas and Propagation Society)
ISSN (Print)0272-4693


OtherAntennas and Propagation Society Symposium
CityLondon, Ont, Can

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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