A Radial-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks
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A radial-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 is also investigated. It is demonstrated that the perfect "invisibility" from electromagnetic cloaks is only available for lossless metamaterials and within an extremely narrow frequency band.
18 pages, 10 figures
18 pages, 10 figures
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Consulte el texto completo en el siguiente enlace:
https://arxiv.org/abs/0805.2050
http://arxiv.org/abs/0805.2050
C. Argyropoulos, Y. Zhao and Y. Hao, "A Radially-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks," IEEE Trans. On Antennas and Propagation, vol. 57, No. 5, pp. 1432-1441, 2009.
doi:10.1109/TAP.2009.2016704
http://arxiv.org/abs/0805.2050
C. Argyropoulos, Y. Zhao and Y. Hao, "A Radially-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks," IEEE Trans. On Antennas and Propagation, vol. 57, No. 5, pp. 1432-1441, 2009.
doi:10.1109/TAP.2009.2016704