DocumentCode :
2251307
Title :
Homogenization and applications of the Fakirs bed of nails substrate
Author :
Silveirinha, Mário G. ; Fernandes, Carlos A. ; Costa, Jorge R.
Author_Institution :
Departamento de Eng. Electrotecnica, Polo II da Univ. de Coimbra
fYear :
2006
fDate :
16-19 May 2006
Firstpage :
241
Lastpage :
243
Abstract :
In this paper, we propose a homogenization approach to describe the reflection of plane waves by a periodic arrangement of thin metallic pins attached to a conducting ground plane: the "Fakir\´s bed of nails" substrate. To this end, the propagation in the metamaterial substrate is described using an effective permittivity model. It is shown that an additional boundary condition, besides the continuity of the tangential components of the fields, is necessary to compute the scattering parameters, consistently with the results recently derived in M. Silveirinha (http://arxiv.org/abs/cond-mat/0509612). It is proved that the proposed homogenization model correctly predicts the dispersion characteristic of TM surface waves in the metamaterial substrate. Possible applications of the "Fakir\´s bed of nails", such as the synthesis of a surface reactance, are discussed
Keywords :
dispersion (wave); electromagnetic wave reflection; electromagnetic wave scattering; metamaterials; permittivity; surface electromagnetic waves; Fakir bed-of-nails substrate; TM surface waves; boundary condition; conducting ground plane; dispersion characteristic; homogenization approach; metamaterial substrate; permittivity model; plane wave reflection; scattering parameters; surface reactance synthesis; tangential components; thin metallic pins; Boundary conditions; Dielectric substrates; Magnetic fields; Magnetic materials; Metamaterials; Nails; Permittivity; Pins; Reflection; Telecommunications;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrotechnical Conference, 2006. MELECON 2006. IEEE Mediterranean
Conference_Location :
Malaga
Print_ISBN :
1-4244-0087-2
Type :
conf
DOI :
10.1109/MELCON.2006.1653082
Filename :
1653082
Link To Document :
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