MULTI-BAND NEGATIVE REFRACTIVE INDEX IN FERRITE-BASED METAMATERIALS

被引：8
|
作者：
Bi, Ke [1 ]
Zhou, Ji [1 ]
Liu, Xiaoming [1 ]
Lan, Chuwen [1 ]
Zhao, Hongjie [2 ]
机构：
[1] Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China
[2] Aerosp Res Inst Special Mat & Proc Technol, Beijing 100074, Peoples R China
来源：
PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER | 2013年 / 140卷
基金：
中国国家自然科学基金; 国家高技术研究发展计划(863计划);
关键词：
BAND; DESIGN; RESONATOR; ABSORBER; MEDIA;
D O I：
10.2528/PIER13050403
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A multi-band ferrite-based metamaterial has been investigated by experiments and simulations. The negative permeability is realized around the ferromagnetic resonance (FMR) frequency which can be influenced by the saturation magnetization 4 pi M-s of the ferrites. Due to having multiple negative permeability frequency regions around the multiple FMR frequencies, the metamaterials consisting of metallic wires and ferrite rods with various 4 pi M-s possess several passbands in the transmission spectra. The microwave transmission properties of the ferrite-based metamaterials can be not only tuned by the applied magnetic field, but also adjusted by the 4 pi M-s of the ferrite rods. A good agreement between experimental and simulated results is demonstrated, which confirms that such a ferrite-based metamaterial possesses a tunable multi-band behavior. This approach opens a new way for designing multi-band metamaterials.
引用
收藏
页码：457 / 469
页数：13
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