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A Radially-Dependent Dispersive Finite-Difference Time-Domain Method for the Evaluation of Electromagnetic Cloaks.
- Source :
-
IEEE Transactions on Antennas & Propagation . May2009, Vol. 57 Issue 5, p1432-1441. 10p. 3 Black and White Photographs, 11 Graphs. - Publication Year :
- 2009
-
Abstract
- 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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 57
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 40507045
- Full Text :
- https://doi.org/10.1109/TAP.2009.2016704