Least upper bounds of the powers extracted and scattered by bi-anisotropic particles

Iñigo Liberal, Younes Ra'di, Ramón Gonzalo, Iñigo Ederra, Sergei A. Tretyakov, Richard W. Ziolkowski

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The least upper bounds of the powers extracted and scattered by bi-anisotropic particles are investigated analytically. A rigorous derivation for particles having invertible polarizability tensors is presented, and the particles with singular polarizability tensors that have been reported in the literature are treated explicitly. The analysis concludes that previous upper bounds presented for isotropic particles can be extrapolated to bi-anisotropic particles. In particular, it is shown that neither nonreciprocal nor magnetoelectric coupling phenomena can further increase those upper bounds on the extracted and scattered powers. The outcomes are illustrated further with approximate circuit model examples of two dipole antennas connected via a generic lossless network.

Original languageEnglish (US)
Article number6832502
Pages (from-to)4726-4735
Number of pages10
JournalIEEE Transactions on Antennas and Propagation
Volume62
Issue number9
DOIs
StatePublished - Sep 1 2014

Keywords

  • Bi-anisotropic media
  • Circuit models
  • Electromagnetic scattering
  • Physical limitations

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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