TY - GEN
T1 - Total- And scattered-field decomposition technique for the finite-element time-domain method
AU - Riley, Douglas J.
AU - Jin, Jian Ming
AU - Lou, Zheng
AU - Petersson, L. E.Rickard
PY - 2005
Y1 - 2005
N2 - 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.
AB - 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.
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U2 - 10.1109/APS.2005.1551494
DO - 10.1109/APS.2005.1551494
M3 - Conference contribution
AN - SCOPUS:33846878967
SN - 0780388836
SN - 9780780388833
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 101
EP - 104
BT - 2005 IEEE Antennas and Propagation Society International Symposium and USNC/URSI Meeting, Digest
T2 - 2005 IEEE Antennas and Propagation Society International Symposium and USNC/URSI Meeting
Y2 - 3 July 2005 through 8 July 2005
ER -