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On the feasibility of using ferromagnetic materials for thin EM absorbers

In English

Författare

Summary, in English

In this paper the magnetization of a ferro-or ferri-magnetic material has been modeled with the Landau-Lifshitz-Gilbert (LLG) equation. We show that with the aid of a static magnetic bias field the material can be switched between a Lorentz-like material with a resonance frequency and a material exhibiting a magnetic conductivity. The reflection from a magnetic material backed by a perfect electrical conductor (PEC) is then analyzed. It is found that one can achieve low reflection (around -20 dB) for a quite large bandwidth (more than two decades).

Publiceringsår

2007

Språk

Engelska

Sidor

324-327

Publikation/Tidskrift/Serie

Proceedings of the International Conference on Electromagnetics in Advanced Applications, 2007

Dokumenttyp

Konferensbidrag

Förlag

IEEE - Institute of Electrical and Electronics Engineers Inc.

Ämne

  • Electrical Engineering, Electronic Engineering, Information Engineering

Conference name

International Conference on Electromagnetics in Advanced Applications (ICEAA), 2007

Conference date

2007-09-17 - 2007-09-21

Conference place

Torino, Italy

Status

Published

ISBN/ISSN/Övrigt

  • ISBN: 978-1-4244-0767-5