New results for the properties of TE surface waves in absorbing layers

Ufimtsev, Pyotr Ya.; Ling, R. T.

doi:10.1109/8.954933

Cited by 20 publications

(7 citation statements)

References 9 publications

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“…firstly and systematically. Subsequently, the transformation of TM-type surface wave and fundamental properties of TE-type surface wave in single absorbing layer were also reported by them [6,7]. 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].…”

Section: Introductionmentioning

confidence: 93%

“…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: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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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“…However, when absorbers are employed for damping cavity resonances or absorbing surface waves, the matching approach is not appropriate. In those scenarios, it is necessary to analyze and solve the dispersion equation trying to maximize, via the use of the most suitable absorbing layer, the attenuation factor of the supported mode [20], [25]. The paper is organized as follows.…”

Section: Theory Design and Perspectives Of Electromagnetic Wave Absomentioning

confidence: 99%

Theory, design and perspectives of electromagnetic wave absorbers

Costa

Monorchio

Manara

2016

IEEE Electromagn. Compat. Mag.

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Electromagnetic absorbers for free space and cavity absorption are discussed. Classical configurations are described as well as more recent designs. The presented layouts are able to provide absorbing behaviors spanning from ultra-narrow band to ultra-wideband. A comparison among various solutions is presented both in terms of achievable bandwidth and in terms of minimum theoretical thickness. The problem of cavity resonances is also addressed. It is shown that resonances can be damped by using alternative solutions with respect to the classic use of lossy magnetic materials

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“…Ufimtsev et al [5][6][7], Paknys and Jackson [8], and Neve and Paknys [9] have analyzed the fundamental characteristics of SEMW in loss coating layer including attenuation and propagation constants, electric and magnetic losses, phase and energy velocities, etc.. SEMW suppression employing resonance-type periodic structures are reported by a number of investigators [10][11][12]. Richmond [13], and Shivelyd [14] have examined the theory of surface waves propagation on a thin resistive sheet, and this theory would be useful in analyzing the scattering properties of thin resistive strips.…”

Section: Introductionmentioning

confidence: 99%

Improvement of Surface Electromagnetic Waves Attenuation With Resistive Loading

Chen¹,

Deng²,

Zhou³

et al. 2011

PIER Letters

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Abstract-Electromagnetic properties of conventional radar absorbing materials (RAM) make it difficult to use them to provide remarkable surface electromagnetic waves (SEMW) attenuation with thin thickness at low radar frequencies such as in the UHF and L bands. In this paper, a composite structure realized by a grounded RAM slab covered by a resistive sheet is proposed. The use of a resistive sheet results in a significant increase of SEMW attenuation performance at low frequency, but almost no increase in its thickness. The electromagnetic scattering properties for a target coated with the RAM with/without covered by a resistive sheet are considered for interpreting the improvement of SEMW attenuation with resistive loading. Using a method-ofmoments (MoM) computational scheme, we explore the performance of the proposed composite structure as radar backscattering suppression for a metal slab at low radar frequencies. It is found that the RAM with resistive loading has significantly increased SEMW attenuation at low frequencies, and advances the large incidence angle or grazing angle mono-static radar cross section (RCS) reduction of the coating slab further than the RAM without resistive loading case.

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New results for the properties of TE surface waves in absorbing layers

Cited by 20 publications

References 9 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

Theory, design and perspectives of electromagnetic wave absorbers

Improvement of Surface Electromagnetic Waves Attenuation With Resistive Loading

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