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

doi:10.1109/TAP.2014.2330620

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 journal › Article › peer-review

17 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 language	English (US)
Article number	6832502
Pages (from-to)	4726-4735
Number of pages	10
Journal	IEEE Transactions on Antennas and Propagation
Volume	62
Issue number	9
DOIs	https://doi.org/10.1109/TAP.2014.2330620
State	Published - Sep 1 2014
Externally published	Yes

Keywords

Bi-anisotropic media
Circuit models
Electromagnetic scattering
Physical limitations

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1109/TAP.2014.2330620

Cite this

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title = "Least upper bounds of the powers extracted and scattered by bi-anisotropic particles",

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.",

keywords = "Bi-anisotropic media, Circuit models, Electromagnetic scattering, Physical limitations",

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T1 - Least upper bounds of the powers extracted and scattered by bi-anisotropic particles

AU - Liberal, Iñigo

AU - Ra'di, Younes

AU - Gonzalo, Ramón

AU - Ederra, Iñigo

AU - Tretyakov, Sergei A.

AU - Ziolkowski, Richard W.

PY - 2014/9/1

Y1 - 2014/9/1

N2 - 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.

AB - 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.

KW - Bi-anisotropic media

KW - Circuit models

KW - Electromagnetic scattering

KW - Physical limitations

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

Abstract

Keywords

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