Electromagnetic scattering from axially inhomogeneous bodies of revolution

Medgyesi-Mitschang, L.; Putnam, J.M.

doi:10.1109/tap.1984.1143430

Cited by 116 publications

(33 citation statements)

References 19 publications

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“…In the figure, the two sets of data are nearly coincident except some small discrepancies, which may be because PEC is used to replace the aluminum in the FEBI-MLFMA simulation. However, our computed results using FEBI-MLFMA have excellent agreements with the computed results given in [24].…”

Section: Numerical Resultssupporting

confidence: 80%

The Combination of Bcgstab With Multifrontal Algorithm to Solve Febi-Mlfma Linear Systems Arising From Inhomogeneous Electromagnetic Scattering Problems

Xue¹,

Cui²,

Lu³

2009

PIER

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Abstract-The hybrid finite-element/boundary-integral method (FEBI) combined with the multilevel fast multipole algorithm (MLFMA) has been applied to model the three-dimensional scattering problems of inhomogeneous media. The stabilized Bi-conjugate gradient (BCGATAB) iterative solver based on the inner-looking algorithm is proposed to solve the final FEBI linear system, and the multifrontal algorithm combined with the approximate minimal degree permutation (AMD) is used for the LU decomposition of the FEM matrix. The accuracy and efficiency of the combined algorithm has been validated in the final of the paper. Numerical results show that the proposed method can greatly improve the efficiency of FEBI for scattering problems of inhomogeneous media.

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Section: Numerical Resultssupporting

confidence: 80%

The Combination of Bcgstab With Multifrontal Algorithm to Solve Febi-Mlfma Linear Systems Arising From Inhomogeneous Electromagnetic Scattering Problems

Xue¹,

Cui²,

Lu³

2009

PIER

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“…Analysis techniques of BOR objects have been developed intensively in literature for a long time [6][7][8][9][10][11][12][13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…This approach was extended by many other researchers to the analysis of radiating and scattering problems from other kind of objects, e.g., homogenous dielectrics [7], dielectric coated conductors [8], lossy dielectrics [9] inhomogeneous dielectrics [10] or elongated dielectric cylinders [15,16]. The drawback of this approach is its rapidly increasing complexity for the inhomogeneous structures.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Finite-Difference/Mode-Matching Method for Analysis of Scattering From Arbitrary Configuration of Rotationally-Symmetrical Posts

Kusiek¹,

Mazur²

2010

PIER

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Abstract-In this paper, the hybrid approach to the analysis of electromagnetic wave scattering from arbitrary configuration of bodyof-revolution (BOR) posts is presented. The proposed approach is based on the representation of each scatterer or set of scatterers by an effective sphere with the known boundary conditions defined by transmission matrix. In the analysis of each single axiallysymmetrical post with irregular shape we utilize the finite-difference frequency-domain/mode-matching technique (FDFD/MM). Then the scattering parameters of investigated set of posts are obtained utilizing the analytical iterative scattering procedure (ISP). This work is an extension of our previously published results where the proposed technique was defined in cylindrical coordinates and was limited to configurations of infinitely long parallel cylinders with arbitrary crosssection. In this paper we extend this method by formulating it in spherical coordinates. This allows us to significantly increase the versatility of the developed approach and in result to include in the analysis the sets of arbitrary located and oriented rotationallysymmetrical posts. The accuracy and efficiency of the proposed technique are discussed. The presented numerical results are verified with the ones obtained from commercial software.

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“…Because of the symmetry of the geometry, only the generatrix that forms the surfaces of the PEC part and dielectric part are needed for solving the BOR problem in a surface integral equation formulation [1][2][3][4][5][6]. Similarly, only the meridian cross section is needed for solving the BOR problem with the finite element method (FEM) [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Fast Inhomogeneous Plane Wave Algorithm for Analysis of Composite Bodies of Revolution

Rui¹,

Hu²,

Liu³

2010

PIER

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Abstract-A fast inhomogeneous plane wave algorithm is developed for the electromagnetic scattering problem from the composite bodies of revolution (BOR). Poggio-Miller-Chang-Harrington-Wu (PMCHW) approach is used for the homogeneous dielectric objects, while the electric field integral equation (EFIE) is used for the perfect electric conducting objects. The aggregation and disaggregation factors can be expressed analytically by using the Weyl identity. Compared with the traditional method of moments (MoM), both the memory requirement and CPU time, are reduced for large-scale composite BOR problems. Numerical results are given to demonstrate the validity and the efficiency of the proposed method.

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Electromagnetic scattering from axially inhomogeneous bodies of revolution

Cited by 116 publications

References 19 publications

The Combination of Bcgstab With Multifrontal Algorithm to Solve Febi-Mlfma Linear Systems Arising From Inhomogeneous Electromagnetic Scattering Problems

The Combination of Bcgstab With Multifrontal Algorithm to Solve Febi-Mlfma Linear Systems Arising From Inhomogeneous Electromagnetic Scattering Problems

Hybrid Finite-Difference/Mode-Matching Method for Analysis of Scattering From Arbitrary Configuration of Rotationally-Symmetrical Posts

Fast Inhomogeneous Plane Wave Algorithm for Analysis of Composite Bodies of Revolution

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