TY - JOUR
T1 - A radially-dependent dispersive finite-difference time-domain method for the evaluation of electromagnetic cloaks
AU - Argyropoulos, Christos
AU - Zhao, Yan
AU - Hao, Yang
PY - 2009
Y1 - 2009
N2 - A radially-dependent dispersive finite-difference time-domain (FDTD) method is proposed to simulate electromagnetic cloaking devices. The Drude dispersion model is applied to model the electromagnetic characteristics of the cloaking medium. Both lossless and lossy cloaking materials are examined and their operating bandwidth investigated. It is demonstrated that the perfect "invisibility" of electromagnetic cloaks is only available for lossless metamaterials and within an extremely narrow frequency band.
AB - A radially-dependent dispersive finite-difference time-domain (FDTD) method is proposed to simulate electromagnetic cloaking devices. The Drude dispersion model is applied to model the electromagnetic characteristics of the cloaking medium. Both lossless and lossy cloaking materials are examined and their operating bandwidth investigated. It is demonstrated that the perfect "invisibility" of electromagnetic cloaks is only available for lossless metamaterials and within an extremely narrow frequency band.
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U2 - 10.1109/TAP.2009.2016704
DO - 10.1109/TAP.2009.2016704
M3 - Article
AN - SCOPUS:67349283655
SN - 0018-926X
VL - 57
SP - 1432
EP - 1441
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 5
ER -