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Constraints on the temporal dispersion of metamaterials

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Author

Summary, in English

The frequency dependence of the permittivity, permeability, and index of refraction restrict metamaterial applications such as cloaking and perfect lenses. Here, the principles of causality and passivity together with identities for Herglotz functions are used to construct various sum rules. The sum rules relate the frequency dependence of the material parameters with their high- and low-frequency values. The corresponding physical bounds determine minimum variations of the material parameters over a frequency interval.

Publishing year

2010

Language

English

Pages

1-3

Publication/Series

Proceedings of the Fourth European Conference on Antennas and Propagation

Document type

Conference paper

Publisher

IEEE - Institute of Electrical and Electronics Engineers Inc.

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

4th European Conference on Antennas and Propagation (EuCAP), 2010

Conference date

2010-04-12 - 2010-04-16

Conference place

Barcelona, Spain

Status

Published

Research group

  • Electromagnetic theory

ISBN/ISSN/Other

  • ISBN: 978-1-4244-6431-9
  • ISBN: 978-84-7653-472-4