Microwave permeability of laminates with thin Fe-based films

Iakubov, I. T.; Lagarkov, A. N.; Maklakov, Sergey S.; Osipov, Alexey V.; Rozanov, Konstantin N.; Ryzhikov, Ilya A.; Starostenko, S. N.

doi:10.1016/j.jmmm.2003.12.599

Cited by 25 publications

(17 citation statements)

References 5 publications

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“…The modified Lorentzian type dispersion rule is a commonly accepted model for dense arrays of split-ring resonators and other similar structures (in this case ), e.g., [9], [11], [16]. Certain composites containing natural magnetic constituents, e.g., composite substrates containing thin ferromagnetic films [30], can be modeled using the general Lorentzian model. Here we study for the sake of clarity the effect of static permeability using (2) since the general Lorentzian model reduces to (2) at low frequencies.…”

Section: B the Effect Of Static Permeability And Frequency Dispersionmentioning

confidence: 99%

“…To apply ferromagnetic films as a bulk material, which is needed, e.g., if the films are utilized as microstrip antenna substrates, film laminates may be used [30]. The laminates can be made using sputtering process with a thin polymer substrate followed by stacking the sputtered substrates together to obtain a bulk laminate.…”

Section: Prospective Magnetic Materials For Microwave Frequenciementioning

confidence: 99%

“…2) Present discussion concerning magnetic materials available in the microwave regime and containing natural magnetic inclusions. Microwave composites filled with thin ferromagnetic films [30] are introduced as prospective antenna substrates. The effects of magnetic dispersion and loss are studied.…”

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confidence: 99%

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Magnetodielectric Substrates in Antenna Miniaturization: Potential and Limitations

Ikonen¹,

Rozanov

Осипов

et al. 2006

IEEE Trans. Antennas Propagat.

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199

124

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Section: B the Effect Of Static Permeability And Frequency Dispersionmentioning

confidence: 99%

Section: Prospective Magnetic Materials For Microwave Frequenciementioning

confidence: 99%

See 1 more Smart Citation

Magnetodielectric Substrates in Antenna Miniaturization: Potential and Limitations

Ikonen¹,

Rozanov

Осипов

et al. 2006

IEEE Trans. Antennas Propagat.

Self Cite

199

124

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“…By varying the methods for preparation and processing of the materials, the parameters of magnetic loss peak may be varied in some extent. [1][2][3] High-frequency magnetic loss may be also obtained in materials comprising non-magnetic metal constituents, due to resonance phenomena in the conducting paths provided that the path is lengthy along the wave vector of the incident high-frequency wave. These materials are referred to as artificial magnets and have been proposed in Ref.…”

Section: Introductionmentioning

confidence: 99%

Control over magnetic spectrum of multilayer magnetic film metamaterial

et al. 2015

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A RLC electric circuit with magnetic core is studied experimentally and theoretically as a promising design of a metamaterial cell. Laminates made of multilayered ferromagnetic films are used as the magnetic core. The wire coiled around the core allows the frequency dependence of permeability to be adjusted according to needs of a particular task by creating a region of intensive magnetic loss below the ferromagnetic resonance frequency of the bare core. The theoretic analysis is based on the quasi-statics of magnetic fields and electric currents. The intensity of the loss peak is proportional to the value of μ′2/μ″, where μ′ and μ″ are the frequency-dependent components of permeability of the core material. The magnetic spectra of cells with cores made of laminates of NiFe films and FeCo films have been measured. It is shown that the application of the winding allows the magnetic loss peak to be shifted from 1 GHz to 0.3 GHz for NiFe and from 5 GHz to 0.7 GHz for FeCo. The effective imaginary permeability at the resonant frequency increases by the factors of 5 and 6, correspondingly. The theory agrees well with the measured data.

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“…For that purpose, composite media realized as laminated structures of ferromagnetic thin lms is a very promising alternative, since such media have among the highest possible permeabilities in the microwave region reported up to date. Quite recent experimental investigations [8,17] report loss parts of the permeability in the order 200 or more in the lower microwave band, for frequencies ranging approximately from 1 to 10 GHz.…”

Section: Introductionmentioning

confidence: 99%