TY - JOUR
T1 - Electromagnetic characteristics of iron-based microwave absorbing materials
AU - Yang, R. B.
AU - Juan, K. Y.
AU - Tsay, C. Y.
AU - Liang, W. F.
AU - Lin, C. K.
PY - 2011
Y1 - 2011
N2 - 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.
AB - 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.
KW - Coaxial/waveguide method
KW - Complex permeability
KW - Complex permittivity
KW - Microwave absorbing materials
KW - Resonant cavity perturbation method
UR - http://www.scopus.com/inward/record.url?scp=79955543352&partnerID=8YFLogxK
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U2 - 10.4028/www.scientific.net/KEM.479.106
DO - 10.4028/www.scientific.net/KEM.479.106
M3 - Article
AN - SCOPUS:79955543352
SN - 1013-9826
VL - 479
SP - 106
EP - 111
JO - Key Engineering Materials
JF - Key Engineering Materials
T2 - 5th Cross-Strait Workshop on the Engineering Materials, CSWEM 5
Y2 - 19 November 2010 through 20 November 2010
ER -