Electromagnetic and microwave absorption properties of carbonyl iron/MnO2 composite

Zhang, Wuqiang; Bie, Shaowei; Chen, Haichao; Lü, Yao; Jiang, Jianjun

doi:10.1016/j.jmmm.2014.01.033

Cited by 77 publications

(36 citation statements)

References 17 publications

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“…It can be seen that a maximum in the frequency dependence of the imaginary part of permeability for both samples is localized near a frequency of 1 GHz and depends weakly on the filler concentration. The measured real and imaginary permeability components are correlated with the data presented in [7]- [10] for close values of CIP concentrations.…”

Section: Permeability and Permittivity Spectra Of Compositementioning

confidence: 69%

“…The carbonyl iron powders (CIP) are used at works [2]- [10] as fillers for composite RAC in microwave range.…”

Section: Introductionmentioning

confidence: 99%

“…The rather narrow operating frequency band is disadvantage of such RAC. It is shown in [5] [6] that double-layer RAC is more broadband and has less reflection coefficient than singlelayer RAC [1]- [3] [7]- [10]. The first layer of such RAC is an absorbing layer.…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic Waves Absorbing Characteristics of Composite Material Containing Carbonyl Iron Particles

Zhuravlev¹,

Suslyaev²,

Korovin³

et al. 2014

MSA

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How to cite this paper: Zhuravlev, V.A., Suslyaev, V.I., Korovin, E.Yu. and Dorozhkin, K.V. (2014) AbstractResults of measurements of permeability, permittivity and radar absorption properties of composites on basis of carbonyl iron particles R-10 brand are presented in this paper. The calculations and experimental studies have shown that in the super high frequency (SHF) and extremely high frequency (EHF) ranges on the basis of two-layer structures with different content of carbonyl iron particles can create a radar absorbing coatings with a reflectivity of less than −10 dB over a wide bandwidth from 3.1 to 17.1 GHz and from 27 to 37 GHz. Absorbing properties of composites are saved in terahertz frequency range from 250 to 525 GHz.

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Section: Permeability and Permittivity Spectra Of Compositementioning

confidence: 69%

“…The carbonyl iron powders (CIP) are used at works [2]- [10] as fillers for composite RAC in microwave range.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Electromagnetic Waves Absorbing Characteristics of Composite Material Containing Carbonyl Iron Particles

Zhuravlev¹,

Suslyaev²,

Korovin³

et al. 2014

MSA

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show abstract

“…About the problems of the thickness-to-bandwidth ratio of a RA, Rozanov pointed out that, for nonmagnetic broadband absorbers, the application of any physically realizable multilayered sheets made of dielectrics with frequency dependence of the permittivity cannot provide a −10 dB reflectivity level if the thickness of the absorber is less than 1/17 of the largest operating wavelength [5]. So it seems that the better choice for a design is to use the magnetic radar absorbers (MRAs) [6][7][8]. However, as it is reported [9], single-layer MRAs usually exhibit a narrow absorption bandwidth, while multilayered MRAs could provide a relatively wider bandwidth.…”

Section: Introductionmentioning

confidence: 99%

A Thin and Broadband Microwave Absorber Based on Magnetic Sheets and Resistive FSS

Dong¹,

Bie²,

Zhou³

et al. 2015

PIER C

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Abstract-To achieve broadband microwave absorption, a three-layer structure is designed and manufactured. It involves a resistive frequency selective surface (FSS) sandwiched between two layers of magnetic sheets. The measurement results reveal that this structure exhibits −13 dB reflectivity in the frequency range of 7.9-18 GHz while the thickness is only 1.7 mm. The reflectivity bandwidth at the level of −10 dB is 11.4 GHz which is much wider than that of magnetic sheets with non-resistive FSS or the magnetic sheets without FSS. The effect of resistive FSS on the performance of the multilayered absorber is discussed in detail. It is concluded that an embedded resistive double loops FSS can result in a secondary resonance peak which obviously broadens the reflectivity bandwidth of the magnetic sheets.

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“…Due to their multiple d orbital electrons, quantum size effects and space-confirmed transport phenomena [6], they have used in research, especially in electromagnetic fields [7][8][9]. Cryptomelane, the 2 Â 2 tunnel structured manganese oxide, including octahedral molecular sieve (OMS) and α-MnO 2 , is the most useful and has been most widely studied.…”

Section: Introductionmentioning

confidence: 99%

A novel microwave absorption material of Ni doped cryptomelane type manganese oxides

Guan

Wang

Dong

et al. 2015

Ceramics International

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Electromagnetic and microwave absorption properties of carbonyl iron/MnO2 composite

Cited by 77 publications

References 17 publications

Electromagnetic Waves Absorbing Characteristics of Composite Material Containing Carbonyl Iron Particles

Electromagnetic Waves Absorbing Characteristics of Composite Material Containing Carbonyl Iron Particles

A Thin and Broadband Microwave Absorber Based on Magnetic Sheets and Resistive FSS

A novel microwave absorption material of Ni doped cryptomelane type manganese oxides

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