An EM Absorber and Frequency Selective Shielding by Use of Metal Fiber Array Composites

An EM Absorber and Frequency Selective Shielding by Use of Metal Fiber Array Composites

The construction of EM absorber and frequency selective shielding has been investigated by using two dimensional metal fiber array (MFA) composites. The MFA composite shows a resonant type frequency dispersion in the complex relative permittivity spectra (εr = ε'r - jε ''r) having a n...

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Veröffentlicht in:IEICE Transactions on Communications 2010/07/01, Vol.E93.B(7), pp.1858-1861
Hauptverfasser: TSUTAOKA, Takanori, HATAKEYAMA, Kenichi
Format: Artikel
Sprache:eng
Schlagworte:
Arrays
Composite structures
Dielectric constant
Dispersions
EM absorber
frequency selective shielding
metal fiber array composite
Metal fibers
negative permittivity
Shielding
Spectra
Wave propagation
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creator TSUTAOKA, Takanori
HATAKEYAMA, Kenichi
description The construction of EM absorber and frequency selective shielding has been investigated by using two dimensional metal fiber array (MFA) composites. The MFA composite shows a resonant type frequency dispersion in the complex relative permittivity spectra (εr = ε'r - jε ''r) having a negative ε'r region. The frequency characteristics of the conventional ferrite-rubber EM absorber can be improved by combining with the negative permittivity property of the MFA composite. A frequency selective shielding can be achieved by the evanescent EM wave propagation in the layered MFA composite structure.
doi_str_mv 10.1587/transcom.E93.B.1858
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1745-1345
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source Alma/SFX Local Collection
subjects Arrays
Composite structures
Dielectric constant
Dispersions
EM absorber
frequency selective shielding
metal fiber array composite
Metal fibers
negative permittivity
Shielding
Spectra
Wave propagation
title An EM Absorber and Frequency Selective Shielding by Use of Metal Fiber Array Composites
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