A radially-dependent dispersive finite-difference time-domain method for the evaluation of electromagnetic cloaks

Christos Argyropoulos, Yan Zhao, Yang Hao

Research output: Contribution to journalArticlepeer-review

51 Scopus citations

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.

Original languageEnglish (US)
Pages (from-to)1432-1441
Number of pages10
JournalIEEE Transactions on Antennas and Propagation
Volume57
Issue number5
DOIs
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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