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Form Invariance of Maxwell's Equations: The Pathway to Novel Metamaterial Specifications for Electromagnetic Reshaping
Date
2010-06-01
Author
Ozgun, Ozlem
Kuzuoğlu, Mustafa
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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We present spatial-coordinate transformation techniques to control the propagation of electromagnetic fields in several surprising and useful applications. The implementation of this approach is based on the fact that Maxwell's equations are form-invariant under coordinate transformations. Specifically, the effect of a general coordinate transformation can be realized by means of an equivalent anisotropic material, in which the original forms of Maxwell's equations are still preserved-in the transformed space. Constitutive parameters of the anisotropic material are determined to appropriately reflect the consequences of the coordinate transformation on the electromagnetic fields. In this paper, we introduce novel implementations and interpretations of the coordinate-transformation approach for the purpose of "reshaping" objects in electromagnetic scattering, and for reshaping and miniaturizing waveguides. We demonstrate the applications of the proposed techniques via several finite-element simulations.
Subject Keywords
Transforms
,
Coordinate transformation
,
Anisotropic media
,
Metamaterials
,
Cloaking
,
Reshaping
,
Waveguides
,
Waveguide miniaturization
,
Finite element methods
URI
https://hdl.handle.net/11511/47704
Journal
IEEE ANTENNAS AND PROPAGATION MAGAZINE
DOI
https://doi.org/10.1109/map.2010.5586575
Collections
Department of Electrical and Electronics Engineering, Article
Citation Formats
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BibTeX
O. Ozgun and M. Kuzuoğlu, “Form Invariance of Maxwell’s Equations: The Pathway to Novel Metamaterial Specifications for Electromagnetic Reshaping,”
IEEE ANTENNAS AND PROPAGATION MAGAZINE
, vol. 52, no. 3, pp. 51–65, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47704.