Electromagnetic TE scattering by a conducting cylinder coated with an inhomogeneous dielectric/magnetic material

Sakr, Ahmed A.; Soliman, Ezzeldin A.; Abdelmageed, Alaa K.

doi:10.1080/09205071.2014.924439

Cited by 4 publications

(2 citation statements)

References 16 publications

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“…The volumic surface integral equation (VSIE) ( [14], [15], [16], [17]) and the surface integral equation (SIE) ( [13], [4], [1], [18], [19], [20], [21], [22]) in conjunction with the method of moments (MoM) are the most powerful techniques to solve this problem numerically, each one has its advantages and its disadvantages depending on the considered problem ( [23], [24], [25]).…”

Section: Introductionmentioning

confidence: 99%

New approximation method for high order impedance boundary condition with surface integral equations for the scattering problem

Daveau,

Oueslati,

Kacem

2024

Int J Numerical Modelling

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In this paper, we propose a new method to approximate operators resulted from solving the scattering Problem in electromagnetism by dielectrically coated conducting bodies, using integral equations and high order impedance boundary condition. We introduce the variational Problem and we prove its well‐posedness. After discretization, we find that operators arising from the high‐order impedance boundary conditions are not well‐defined. We present the new theoretical approach and highlight its potential through numerical experiments.

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Section: Introductionmentioning

confidence: 99%

New approximation method for high order impedance boundary condition with surface integral equations for the scattering problem

Daveau,

Oueslati,

Kacem

2024

Int J Numerical Modelling

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“…[1][2][3] For an arbitrary cross-section, one has to resort to a numerical technique which guarantees the accuracy and efficiency of the solution. The volume-surface integral equation (VSIE) [4][5][6][7][8][9] and the surface integral equation (SIE) [10][11][12] stand as the most powerful techniques to attack this problem numerically. The VSIE is an appropriate method when the coating material has inhomogeneous properties.…”

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confidence: 99%

A surface integral equation formulation for electromagnetic scattering from a conducting cylinder coated with multilayers of homogeneous materials

Sakr

Soliman

Abdelmageed

2014

Journal of Applied Physics

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A surface integral equation formulation is presented for electromagnetic scattering by a conducting cylinder coated with multilayers of homogeneous materials. Each layer may have a nonunity relative permittivity and permeability. Both the TM and TE polarizations are considered. The surface equivalence principle is utilized to model the problem where each layer is replaced by equivalent surface currents residing on the enclosing boundaries. A systematic procedure is developed to generate a set of coupled integral equations for an arbitrary number of layers. The method of moments is invoked to convert these equations into a sparse matrix equation which can be solved using sparse matrix routines. Numerical results are presented to demonstrate the accuracy and efficiency of the proposed method. The performance of the method is compared with that of the volume-surface integral equation formulation where a great saving in memory storage and computation time is achieved. V C 2014 AIP Publishing LLC.

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Study of scattering cross section of a plasma column using Green's function volume integral equation method

Soltanmoradi

Shokri

2017

Physics of Plasmas

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In this article, the electromagnetic wave scattering from plasma columns with inhomogeneous electron density distribution is studied by the Green's function volume integral equation method. Due to the ready production of such plasmas in the laboratories and their practical application in various technological fields, this study tries to find the effects of plasma parameters such as the electron density, radius, and pressure on the scattering cross-section of a plasma column. Moreover, the incident wave frequency influence of the scattering pattern is demonstrated. Furthermore, the scattering cross-section of a plasma column with an inhomogeneous collision frequency profile is calculated and the effect of this inhomogeneity is discussed first in this article. These results are especially used to determine the appropriate conditions for radar cross-section reduction purposes. It is shown that the radar cross-section of a plasma column reduces more for a larger collision frequency, for a relatively lower plasma frequency, and also for a smaller radius. Furthermore, it is found that the effect of the electron density on the scattering cross-section is more obvious in comparison with the effect of other plasma parameters. Also, the plasma column with homogenous collision frequency can be used as a better shielding in contrast to its inhomogeneous counterpart.

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Electromagnetic TE scattering by a conducting cylinder coated with an inhomogeneous dielectric/magnetic material

Cited by 4 publications

References 16 publications

New approximation method for high order impedance boundary condition with surface integral equations for the scattering problem

New approximation method for high order impedance boundary condition with surface integral equations for the scattering problem

A surface integral equation formulation for electromagnetic scattering from a conducting cylinder coated with multilayers of homogeneous materials

Study of scattering cross section of a plasma column using Green's function volume integral equation method

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