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Robust method to retrieve the constitutive effective parameters of metamaterials

mengying 添加于 2015-11-1 12:42 | 1251 次阅读 | 0 个评论

作者
Chen X, Grzegorczyk TM, Wu B-I, Pacheco JJ, Kong JA
摘要
We propose an improved method to retrieve the effective constitutive parameters (permittivity and permeability) of a slab of metamaterial from the measurement of S parameters. Improvements over existing methods include the determination of the first boundary and the thickness of the effective slab, the selection of the correct sign of effective impedance, and a mathematical method to choose the correct branch of the real part of the refractive index. The sensitivity of the effective constitutive parameters to the accuracy of the S parameters is also discussed. The method has been applied to various metamaterials and the successful retrieval results prove its effectiveness and robustness.
详细资料
- 文献种类: Journal Article
- 期刊名称: Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
- 期刊缩写: Phys Rev E Stat Nonlin Soft Matter Phys
- 期卷页: 2004年第70卷第1 Pt 2期 016608页
- 地址: Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
- ISBN: 1539-3755
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