Effective magnetic properties of a composite material with circular conductive elements |
| |
| Authors: | M Gorkunov M Lapine E Shamonina KH Ringhofer |
| |
| Institution: | (1) Department of Physics, University of Osnabrück, 49069 Osnabrück, Germany, DE;(2) Department of Engineering Science, University of Oxford, Oxford OX1 3PJ, UK, GB |
| |
| Abstract: | Effective magnetic properties of a composite meta-material consisting of periodically arranged circular conductive elements
are studied theoretically. A general expression for the effective bulk permeability is obtained with mutual effects and lattice
ordering being taken into account. The resonance frequency of the permeability is found to be strongly dependent on the size
and shape of the unit cell. Frequency dispersion of the permeability is studied with special attention paid to the frequency
range, where negative values of the permeability are possible. Corresponding recommendations for optimisation of the meta-materials
with negative permeability are made. The results are confirmed by numerical simulations of the finite structure behaviour
in an external magnetic field.
Received 19 April 2002 Published online 31 July 2002 |
| |
| Keywords: | PACS 41 20 Jb Electromagnetic wave propagation radiowave propagation – 78 20 Bh Theory models and numerical simulation |
| 本文献已被 SpringerLink 等数据库收录！ |
