Artificial loss in FDTD predictions of high-Q cavities

C. Birtcher, S. Georgakopoulos, Constantine Balanis

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

1 Scopus citations


A study was carried out to demonstrate that the introduction of an artificial loss mechanism into the solution space may be a viable alternative to extremely large numbers of time steps. By setting the conductivity of the free-space cells to a small value, the transient fields inside the cavity were forced to decay to zero much more rapidly, enabling the accurate Fourier transform of the time-domain fields into the frequency domain.

Original languageEnglish (US)
Title of host publicationIEEE Antennas and Propagation Society International Symposium
Subtitle of host publicationTransmitting Waves of Progress to the Next Millennium, Held in Conjunction with: USNC/URSI National Radio Science Meeting, AP-S/URSI 2000
Number of pages4
StatePublished - Dec 1 2000

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)0272-4693

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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