Left-handed metastructures with selective frequency transmission window for gigahertz shielding applications

被引：7
作者：
Ababei, G. [1 ]
Olariu, C. S. [1 ]
Lupu, N. [1 ]
Chiriac, H. [1 ]
机构：
[1] Natl Inst Res & Dev Tech Phys, Iasi 700050, Romania
来源：
JOURNAL OF APPLIED PHYSICS | 2015年 / 117卷 / 17期
关键词：
MICROWIRES; COMPOSITES; PLASMONS;
D O I：
10.1063/1.4917000
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Experimental evidence of left-handed properties of the Fe-, CoFe-, and Co-based glass-covered amorphous microwires in free standing systems is demonstrated. A new broadband frequency shielding metastructure with selective transmission frequency in the microwave range is presented. The X-band microwave-guide and the free-space methods were used as experimental techniques in the frequency range from 1 to 12 GHz. The X-band experimental results show that the mixed metastructure presents left-handed behavior between 8.5 and 10.5 GHz. The mixed metastructure for large areas presents broadband frequency domains, with left-handed properties between 6.5 and 10.5 GHz (the sum of intrinsic ferromagnetic and antiferromagnetic resonance frequencies domains of individual microwires) and a transmission window between 7.6 and 10.5 GHz. Double negative characteristics of the metastructures are in agreement with the computed results calculated based on Landau-Lifshitz-Gilbert equations and Nicolson-Ross-Weir analytical method. (C) 2015 AIP Publishing LLC.
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页数：4
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