Total- And scattered-field decomposition technique for the finite-element time-domain method

Douglas J. Riley, Jian Ming Jin, Zheng Lou, L. E.Rickard Petersson

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

Abstract

A total- and scattered-field decomposition (TSFD) technique for the finite-element time-domain (FETD) method is described. This formulation leads to both a volumetric excitation method and a Huygens' surface excitation method to impress the incident field in the total-field region. Leakage suppression into the scattered-field region on the order of -250 dB has been obtained, independent of the mesh density and the propagation angle. In addition, in a free-space environment, the relative error between the calculated total field and the discrete incident field is also on the order of -250 dB for the volumetric excitation scheme. Consequently, this total-and scattered-field approach can provide accuracy that is comparable to a pure scattered-field formulation. Both free space and air-earth interfaces are considered.

Original languageEnglish (US)
Title of host publication2005 IEEE Antennas and Propagation Society International Symposium and USNC/URSI Meeting, Digest
Pages101-104
Number of pages4
DOIs
StatePublished - Dec 1 2005
Event2005 IEEE Antennas and Propagation Society International Symposium and USNC/URSI Meeting - Washington, DC, United States
Duration: Jul 3 2005Jul 8 2005

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
Volume1 B
ISSN (Print)1522-3965

Other

Other2005 IEEE Antennas and Propagation Society International Symposium and USNC/URSI Meeting
CountryUnited States
CityWashington, DC
Period7/3/057/8/05

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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