Tunable two-dimensional left-handed material consisting of ferrite rods and metallic wires

Zhao, Hongjin; Zhou, Ji; Kang, Lei; Zhao, Qian

doi:10.1364/oe.17.013373

Cited by 63 publications

(34 citation statements)

References 21 publications

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“…For comparison, the single-band NRI ferrite-based metamaterials were also prepared by assembled the rod-wire units into an array. The structure of the single-band NRI ferrite-based metamaterials is same as that in [33]. The microwave properties of the ferrite-based metamaterials were measured by an HP 8720ES network analyzer.…”

Section: Methodsmentioning

confidence: 99%

“…As the most typical gyromagnetic materials, ferrites were used to substitute for SRRs to provide a more dynamically tunable negative permeability [31,32]. Under an applied bias magnetic field, ferrite-based metamaterials show a tunable NRI characteristic in a broad frequency band [33,34]. Much effort has been put into the fabrication and investigation of dual-band NRI metamaterials composed of ferrites and metallic resonators [35].…”

Section: Introductionmentioning

confidence: 99%

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Multi-Band Negative Refractive Index in Ferrite-Based Metamaterials

Bi¹,

Zhou²,

Liu³

et al. 2013

PIER

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Abstract-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 4πM 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 4πM 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 4πM 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.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multi-Band Negative Refractive Index in Ferrite-Based Metamaterials

Bi¹,

Zhou²,

Liu³

et al. 2013

PIER

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“…As we know, if the ferrite bias magnetic field H 0 is applied along z-axis, which means transverse magnetization, by interacting with the magnetic field of an electromagnetic wave, ferromagnetic precession can arise in ferrite. The permeability of ferrite μ 1 can be described by LandauLifshitz-Gilbert model [18]:…”

Section: Introductionmentioning

confidence: 99%

Magnetically Tunable Ferrite-Dielectric Left-Handed Metamaterial

Du¹,

Wang³

et al. 2016

PIER C

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Abstract-In this paper, a magnetically tunable metamaterial is proposed and studied. The metamaterial is based on the combination of ferrite sheets and dielectric rods. The tunable property is originated from the ferromagnetic resonance and electric response of dielectric rods. The retrieved electromagnetic parameters and transmission characteristic showed that by simultaneously inspiring the ferromagnetic resonance and electric resonance, composite metamaterial can possess double-negative band in the resonant state. Moreover, this band was tunable by adjusting applied magnetic fields. The simulations and experiments verified that the composite metamaterial clearly displayed a tunable feature. The proposed method is simple in designing tunable metamaterials.

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“…11,12 It is desirable to design FMR-based filters using ferrite metamaterials in place of single ferrite. [13][14][15] Recently, ferrite metamaterials of various materials and shapes are investigated in theory and experiments, which are suitable for multiple operated wavebands. 16,17 FMR-based bandstop filters rely on resonance to absorb microwave power at the FMR frequency.…”

Section: Introductionmentioning

confidence: 99%

Tunable metamaterial bandstop filter based on ferromagnetic resonance

et al. 2015

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Tunable wideband microwave bandstop filters have been investigated by experiments and simulations. The negative permeability is realized around the ferromagnetic resonance frequency which can be influenced by the demagnetization factor of the ferrite rods. For the filter composed of two ferrite rods with different size, it exhibits a -3 db stop bandwidth as large as 500 MHz, peak absorption of -40 db and an out-of-stopband insertion loss of -1.5 db. This work provides a new way to fabricate the microwave bandstop filters.

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Tunable two-dimensional left-handed material consisting of ferrite rods and metallic wires

Cited by 63 publications

References 21 publications

Multi-Band Negative Refractive Index in Ferrite-Based Metamaterials

Multi-Band Negative Refractive Index in Ferrite-Based Metamaterials

Magnetically Tunable Ferrite-Dielectric Left-Handed Metamaterial

Tunable metamaterial bandstop filter based on ferromagnetic resonance

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