MULTI-BAND NEGATIVE REFRACTIVE INDEX IN FERRITE-BASED METAMATERIALS | Zendy

Ke Bi | Zendy; Ji Zhou | Zendy; Xiaoming Liu | Zendy; Chuwen Lan | Zendy; Hongjie Zhao | Zendy

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MULTI-BAND NEGATIVE REFRACTIVE INDEX IN FERRITE-BASED METAMATERIALS

Author(s) -

Ke Bi,

Ji Zhou,

Xiaoming Liu,

Chuwen Lan,

Hongjie Zhao

Publication year - 2013

Publication title -

electromagnetic waves

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.437

H-Index - 89

eISSN - 1559-8985

pISSN - 1070-4698

DOI - 10.2528/pier13050403

Subject(s) - metamaterial , ferrite (magnet) , materials science , microwave , relative permeability , ferromagnetic resonance , rod , frequency band , permeability (electromagnetism) , negative refraction , refractive index , optics , optoelectronics , condensed matter physics , nuclear magnetic resonance , magnetic field , magnetization , composite material , physics , telecommunications , bandwidth (computing) , computer science , chemistry , porosity , medicine , biochemistry , alternative medicine , pathology , quantum mechanics , membrane

A multi-band ferrite-based metamaterial has been inves- tigated by experiments and simulations. The negative permeability is realized around the ferromagnetic resonance (FMR) frequency which can be in∞uenced by the saturation magnetization 4…Ms of the fer- rites. 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…Ms 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 fleld, but also adjusted by the 4…Ms of the ferrite rods. A good agreement between experimental and simulated results is demonstrated, which conflrms that such a ferrite-based metamaterial possesses a tunable multi-band behavior. This approach opens a new way for designing multi-band metamaterials.

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