Microwave absorption characteristics of chiral materials with Fe3O4-polyaniline composite matrix

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	Microwave absorption characteristics of chiral materials with Fe3O4-polyaniline composite matrix
	G. C. Sun; K. L. Yao; H. X. Liao; Z. C. Niu; Z. L. Liu
	2000
发表期刊	International Journal of Electronics
ISSN	0020-7217
卷号	87 期号:6 页码:735-740
摘要	Fe3O4-polyaniline composites have been prepared in which the concentrations of Fe3O4 are 10%, 15%, 20%, 30% and 40% by weight. Microwave chiral composites are then prepared employing copper helices as chiral inclusions and the Fe3O4-polyaniline composites as the matrix. The electromagnetic parameters of the chiral Fe3O4-polyaniline composites are measured using a circular waveguide method at 9.5 GHz, and the normal reflectance from a perfect conductor-backed chiral slab is calculated. The microwave absorption characteristics of the chiral Fe3O4-polyaniline composites are studied and compared with those of a non-chiral Fe3O4-polyaniline composite matrix. The results show that the addition of the chiral inclusions to the non-chiral matrix improves both the dielectric and the magnetic losses. As well as this improvement in losses, the chiral materials have higher microwave absorption. The optimal concentration of Fe3O4 in the matrix is about 15% to obtain the lowest reflectance of chiral Fe3O4-polyaniline composites.
部门归属	acad sinica, int ctr mat phys, shenyang 110015, peoples r china. huazhong univ sci & technol, dept phys, wuhan 430074, peoples r china. huazhong univ sci & technol, natl lab laser technol, wuhan 430074, peoples r china.;yao, kl (reprint author), acad sinica, int ctr mat phys, shenyang 110015, peoples r china
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WOS记录号	WOS:000087391600010
引用统计	被引频次：35[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37167
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	G. C. Sun,K. L. Yao,H. X. Liao,et al. Microwave absorption characteristics of chiral materials with Fe3O4-polyaniline composite matrix[J]. International Journal of Electronics,2000,87(6):735-740.
APA	G. C. Sun,K. L. Yao,H. X. Liao,Z. C. Niu,&Z. L. Liu.(2000).Microwave absorption characteristics of chiral materials with Fe3O4-polyaniline composite matrix.International Journal of Electronics,87(6),735-740.
MLA	G. C. Sun,et al."Microwave absorption characteristics of chiral materials with Fe3O4-polyaniline composite matrix".International Journal of Electronics 87.6(2000):735-740.