Paper Title:
Electromagnetic Characteristics of Iron-Based Microwave Absorbing Materials
  Abstract

Nowadays human are exposed to an environment filling with electromagnetic waves over a wide frequency range. The electromagnetic properties of microwave absorbing materials plays an important role in the performance of civilian electromagnetic interference (EMI) shielding at low frequency range and military stealth technology at high frequency one. The electromagnetic properties include complex permittivity and permeability and its combination determines the electromagnetic wave absorption ability of a material. Complex permittivity and permeability can be measured by three different methods, i.e., free-space method, coaxial/waveguide method, and resonant cavity perturbation method. The first one requires a large space, expensive equipment, and not suitable for academic usage. In the present study, using coaxial/waveguide and resonant cavity perturbation methods, electromagnetic characteristics of iron-based microwave absorbing materials will be obtained and its microwave absorption performance will be investigated. In addition, a comparison between the measurements by these two methods will be addressed.

  Info
Periodical
Edited by
Chin-Yi Chen and Jing-Tang Chang
Pages
106-111
DOI
10.4028/www.scientific.net/KEM.479.106
Citation
R.B. Yang, K.Y. Juan, C. Y. Tsay, W.F. Liang, C. K. Lin, "Electromagnetic Characteristics of Iron-Based Microwave Absorbing Materials", Key Engineering Materials, Vol. 479, pp. 106-111, 2011
Online since
April 2011
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Price
$32.00
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