DocumentCode :
761240
Title :
Shielding and reflection properties of periodic fiber-matrix composite structures
Author :
Chu, Hsiao-Chang ; Chen, Chun Hsiung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Volume :
38
Issue :
1
fYear :
1996
fDate :
2/1/1996 12:00:00 AM
Firstpage :
1
Lastpage :
6
Abstract :
The plane-wave shielding and reflection properties of a single-layer composite material are analyzed, based on a filament-current phase-correction model that treats the composite material as a lossy periodic structure of fibers situated in a dielectric matrix. The scattering effect of the fibers is dealt with by calculating the scattered fields from the fiber currents, which are assumed to be concentrated along the centers of the fibers. To include the effect of the dielectric matrix, multiple reflection and transmission at the air-matrix interfaces, as well as the phase correction across the fiber grating, are incorporated in the analysis. In this study, only numerical results for the TM case are presented for graphite/epoxy composite materials. In particular, the parameters that influence the shielding and reflection characteristics, such as the angle of incidence and the frequency of the incident wave, the conductivity and radius of the fibers, and the dielectric constant of the matrix, are investigated in detail. Also included are results to illustrate the frequency-selective phenomena associated with composite structures
Keywords :
carbon fibre reinforced composites; electromagnetic shielding; electromagnetic wave reflection; electromagnetic wave scattering; electromagnetic wave transmission; permittivity; air-matrix interfaces; conductivity; dielectric constant; dielectric matrix; fiber currents; fiber grating; filament-current phase-correction model; frequency-selective phenomena; graphite/epoxy composite materials; incident wave frequency; lossy periodic structure; multiple reflection; multiple transmission; periodic fiber-matrix composite structures; phase correction; plane wave reflection; plane wave shielding; radius; reflection properties; scattered fields; scattering effect; shielding properties; Anisotropic magnetoresistance; Composite materials; Dielectric losses; Electromagnetic scattering; Fiber gratings; Frequency; Periodic structures; Radar scattering; Reflection; Transmission line matrix methods;
fLanguage :
English
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9375
Type :
jour
DOI :
10.1109/15.485689
Filename :
485689
Link To Document :
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