Co-Evaluation of Reflection Loss and Surface Wave Attenuation for Magnetic Absorbing Material

Li, Yinrui; Li, Dongmeng; Luo, Hui; Fu, Chen; Wang, Xian; Gong, Rongzhou

doi:10.1109/tap.2018.2867070

Cited by 26 publications

(6 citation statements)

References 17 publications

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“…So the surface wave attenuation abilities of the magnetic absorbing sheets are generally evaluated according to the RCS reductions, i.e. the difference of the peak values at the incident angle of around 75 • before coating and after coating respectively [13,14]. The reduction of RCS, listed in Table 2, is in good agreement with the magnitude of surface wave attenuation constants.…”

Section: Resultsmentioning

confidence: 89%

“…According to the calculation method of single-layer magnetic absorbing material [2,13], the surface wave attenuation characteristics of the above sheet A and sheet B with thicknesses of 0.2-0.5 mm were investigated, respectively. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…Recently, resistive loading, impedance loading at margins and magnetic thin film loading on single-layer RAM for enhancement of surface wave attenuation were reported by Chen et al [2,8,9]. However, it is very hard for a single-layer microwave absorbing sheet to realize strong attenuation of surface waves over a wide frequency range (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18) GHz) based on the previous reports. Unfortunately, the numerical analysis of surface wave attenuation constants in two or more layers composite absorbing sheets is very complicated according to the complex transcendental relationship in the dispersion equation of surface waves.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Surface Wave Attenuation in Double-Layer Magnetic Absorbing Sheet for Wide Frequency Range Application

Li¹,

Yang²,

Li³

et al. 2020

PIER M

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We firstly derived the simplified formulas for calculating attenuation constants of surface wave in double-layer magnetic absorbing sheets (MASs). The fabricated two kinds of magnetic absorbing sheets, having advantages in the low and high frequency range respectively, were used to design a group of 0.5 mm-thick double-layer sheets. Numerical calculation results show that the surface wave attenuation constants of double-layer absorbing sheet with a proper combination of the two MASs can be significantly enhanced in the whole frequency range, compared to those single-layer sheets of the same thickness. Furthermore, the simulations of monostatic RCS reduction of the metal slab coated with double-layer MAS well confirm the calculation analysis. This work demonstrates that it is feasible for double-layer magnetic absorbing sheet to enhance the surface wave attenuation ability and broaden application frequency range.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis of Surface Wave Attenuation in Double-Layer Magnetic Absorbing Sheet for Wide Frequency Range Application

Li¹,

Yang²,

Li³

et al. 2020

PIER M

Self Cite

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“…Moreover, analyzing the dispersion diagram of MAs is not possible by using the simulation software. To perform this task, various methodologies have been proposed to quantify the complex surface wave propagation constant in different kinds of MAs, such as single layered lossy media [29], [30], [31], dielectric layer coated with resistive sheet, [32], [33], and multilayering of lossless/lossy dielectric media [34], [35], [36]. Real and imaginary parts of complex propagation constant indicate the attenuation and propagation constants of surface wave, respectively.…”

Section: Introductionmentioning

confidence: 99%

Analysis and Design of Microwave Absorbers Combining Surface Wave Attenuation and Reflection Bandwidth Properties

Mishra,

Monorchio

2024

IEEE Trans. Electromagn. Compat.

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A new method is outlined in this manuscript to design an optimized microwave absorber (MA) achieving the desired level of reflection bandwidth (RBW) and surface wave attenuation (SWA). The proposed semianalytical two-dimensional dynamic method is best suited for the type of MAs consisting of either single-layer or multilayer impedance surfaces, such as resistive sheets and meta-materials. The proposed work contains the following two aims: 1) computation of the SWA in meta-material-based absorbers and 2) optimization of MA parameters for obtaining the desired level of SWA and RBW. To achieve the first aim, a complete mathematical explanation is outlined in detail, and further, to validate it, a particular example is implemented through which it is possible to simulate and analyze the structure via full-wave simulations. This proposed methodology is further integrated with the multiobjective optimization process of a genetic algorithm to achieve the second aim. Consequently, optimization of MA parameters is carried out and the desired level of outputs (i.e., RBW and SWA) is achieved. The proposed approach is explained by means of various examples of MAs and after detailed analysis, some competitive solutions are achieved. The proposed work can be widely applied in microwave frequency-based electronic devices to avoid surface electromagnetic wave coupling.

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“…Compared to natural materials, metamaterials have more special properties, which make electromagnetic waves through metamaterials have better performance. So far, metamaterials have been used to achieve focusing, [1][2][3] beamforming, [4][5][6] polarization conversion, [7][8][9] absorbing, [10][11][12] RCS reduction 13,14 and so on.…”

Section: Introductionmentioning

confidence: 99%

A 1‐bit reconfigurable metasurface antenna for ground penetrating radar application

Wang

Zeng

Zhao

et al. 2022

Int J RF Mic Comp-Aid Eng

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A 1‐bit reconfigurable metasurface antenna for Ground penetrating radar (GPR) application is proposed. The element is loaded with one PIN diode, which can be electronically controlled to generate two states with 200° reflection phase difference at 2.0 GHz. The two states are regarded as “1” and “0.” Based on the proposed element, a 10 × 10 reconfigurable metasurface is designed. Besides, a digital control board is used to control the state of element. A reconfigurable metasurface antenna is simulated and fabricated. The simulated and experimented results indicate that the proposed antenna can achieve ±40° beam scanning with a gain tolerance of 3 dB and the maximum gain of 16.7 dBi. In addition, the beam‐forming performance can be achieved, such as multibeam. These properties ensure the proposed antenna has great potential in GPR and microwave imaging systems.

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Co-Evaluation of Reflection Loss and Surface Wave Attenuation for Magnetic Absorbing Material

Cited by 26 publications

References 17 publications

Analysis of Surface Wave Attenuation in Double-Layer Magnetic Absorbing Sheet for Wide Frequency Range Application

Analysis of Surface Wave Attenuation in Double-Layer Magnetic Absorbing Sheet for Wide Frequency Range Application

Analysis and Design of Microwave Absorbers Combining Surface Wave Attenuation and Reflection Bandwidth Properties

A 1‐bit reconfigurable metasurface antenna for ground penetrating radar application

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