Electromagnetic Scattering by Conducting Bor Coated With Chiral Media Above a Lossy Half-Space

Ding, Dazhi; Chen, Rushan

doi:10.2528/pier10021004

Cited by 19 publications

(7 citation statements)

References 28 publications

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“…The frequency is set to 1 GHz (λ 0 = 0. Secondly, the scattering by a missile-like object locally coated with absorbing materials [14] is presented. The model is shown in Figure 4.…”

Section: Numerical Resultsmentioning

confidence: 99%

The Application of Modified Phase Extracted Basis Functions in Scattering Analysis of Dielectric-Coated Targets

Niu¹,

Nie²,

He³

2012

PIER

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Abstract-A novel basis function, called as the Modified Phase Extracted (MPE) basis function, has been proposed to analyze threedimensional scattering problems for electrically large, thin dielectriccoated targets. The MPE basis function, which can be defined on large (e.g., a wavelength or more) curvilinear geometrical elements, is developed for quadrilateral cells. Consequently, combining with the thin dielectric sheet (TDS) approximation, the MPE basis function solves the scattering problem accurately with fewer unknowns than the solutions based on the conventional basis functions. In order to improve the accuracy of the solution solving the problem which has thicker dielectric coatings, some modifications about the TDS approximation model are made. Numerical examples demonstrate that the validity of the proposed approach in solving the scattering from electrically large, thin coated objects.

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“…The frequency is set to 1 GHz (λ 0 = 0. Secondly, the scattering by a missile-like object locally coated with absorbing materials [14] is presented. The model is shown in Figure 4.…”

Section: Numerical Resultsmentioning

confidence: 99%

The Application of Modified Phase Extracted Basis Functions in Scattering Analysis of Dielectric-Coated Targets

Niu¹,

Nie²,

He³

2012

PIER

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“…Basically, chirality is defined as the property of a structure of being non-superimposable onto its mirror image [1]. Recently, there is rapid development on the study of electromagnetic wave propagation in chiral media [1][2][3][4][5][6][7][8]. The possibility of realizing negative refraction by chiral nihility was first discussed by Tretyakov et al (2003) [9].…”

Section: Introductionmentioning

confidence: 99%

Application of Chiral Layers and Metamaterials for the Reduction of Radar Cross Section

Tehrani¹,

Abdolali²,

Zarifi³

et al. 2013

PIER

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Abstract-In this paper, the applications of chiral layers and metamaterials as radar absorbing materials are investigated. A perfect electric conductor plate covered by a chiral metamaterial is considered and after the formulation of the problem, reflection of the structure under an oblique plane wave incidence of arbitrary polarization is investigated. Then several examples of the applications of chiral layers in nondispersive, dispersive, and chiral nihility conditions are provided to design of zero reflection coatings. Finally, application of chiral metamaterial structures as microwave absorbers is discussed. In some of the provided examples, the method of genetic algorithm is used to optimize chiral coatings for the minimization of co-and cross reflected power.

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“…When the scatterer is a body of revolution (BOR), the problem can be efficiently solved using a 2D version of FEM by taking advantage of the rotationally symmetrical property [18,19]. Based on such a method, rotational 3D cloaks and other metamaterial devices in free space have been analyzed [20].…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Axisymmetric Invisibility Cloaks With Arbitrary Shapes in Layered-Medium Background

Zhai¹,

Cui²

2011

PIER B

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Abstract-Three-dimensional (3D) axisymmetric invisibility cloaks with arbitrary shaped in layered-media background are presented using the transformation optics. The inner and outer boundaries of the cloaks can be non-conformal with arbitrary shapes, which considerably improve the flexibility of the cloaking applications. However, such kinds of 3D cloaks cannot be simulated using the commercial softwares due to the tremendous memory requirements and CPU time. By taking advantage of the rotationally symmetrical property, we propose an efficient finite-element method (FEM) to simulate and analyze the 3D cloaks, which can greatly reduce the CPU time and memory requirements. The method is based on the electric-field formulation, in which the transverse fields are expanded in terms of second-order edgebased vector basis functions and the azimuth components are expanded using second-order nodal-based scalar basis functions. The FEM mesh is truncated using the absorbing boundary condition. Excellent cloaking performance of the 3D cloaks in layered-media background has been verified by the proposed method.

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Electromagnetic Scattering by Conducting Bor Coated With Chiral Media Above a Lossy Half-Space

Cited by 19 publications

References 28 publications

The Application of Modified Phase Extracted Basis Functions in Scattering Analysis of Dielectric-Coated Targets

The Application of Modified Phase Extracted Basis Functions in Scattering Analysis of Dielectric-Coated Targets

Application of Chiral Layers and Metamaterials for the Reduction of Radar Cross Section

Three-Dimensional Axisymmetric Invisibility Cloaks With Arbitrary Shapes in Layered-Medium Background

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