2017
DOI: 10.2528/pierb17011803
|View full text |Cite
|
Sign up to set email alerts
|

Fast Converging Cfie-Mom Analysis of Electromagnetic Scattering From Pec Polygonal Cross-Section Closed Cylinders

Abstract: Abstract-The analysis of the electromagnetic scattering from perfectly electrically conducting (PEC) objects with edges and corners performed by means of surface integral equation formulations has drawbacks due to the interior resonances and divergence of the fields on geometrical singularities. The aim of this paper is to show a fast converging method for the analysis of the scattering from PEC polygonal cross-section closed cylinders immune from the interior resonance problems. The problem, formulated as com… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2

Citation Types

0
2
0

Year Published

2017
2017
2021
2021

Publication Types

Select...
3

Relationship

2
1

Authors

Journals

citations
Cited by 3 publications
(2 citation statements)
references
References 45 publications
0
2
0
Order By: Relevance
“…This is what happens when: (1) the Galerkin scheme is adopted, and (2) the selected expansion functions are orthonormal eigenfunctions of a suitable operator containing the most singular part of the integral operator at hand. Such an approach, appropriately called method of analytical preconditioning, is very effective, as clearly shown in the literature devoted to the study of the scattering, propagation, and radiation problems [23][24][25][26][27][28][29][30][31][32][33]. Another way to obtain a guaranteed-convergence consists in solving numerically the singular integral equation by means of a Nyström-type discretization scheme taking into account the singularity of the integral equation and the behavior of the unknowns at the edges [34][35][36][37][38].…”
Section: Introductionmentioning
confidence: 99%
“…This is what happens when: (1) the Galerkin scheme is adopted, and (2) the selected expansion functions are orthonormal eigenfunctions of a suitable operator containing the most singular part of the integral operator at hand. Such an approach, appropriately called method of analytical preconditioning, is very effective, as clearly shown in the literature devoted to the study of the scattering, propagation, and radiation problems [23][24][25][26][27][28][29][30][31][32][33]. Another way to obtain a guaranteed-convergence consists in solving numerically the singular integral equation by means of a Nyström-type discretization scheme taking into account the singularity of the integral equation and the behavior of the unknowns at the edges [34][35][36][37][38].…”
Section: Introductionmentioning
confidence: 99%
“…However, for such first-kind weakly-singular or hyper-singular integral equations, the convergence of discretization schemes cannot be guaranteed, and the sequence of condition numbers of truncated system is divergent due to the unboundedness of the integral operator or of its inverse [1]. In order to overcome these problems, a general approach, detailed in [2], has been extensively applied to the analysis of propagation, radiation and scattering problems [3][4][5][6][7][8][9][10][11][12][13][14][15][16], combining analytical regularization and discretization of the integral operator in a single step. By means of Galerkin method with a complete set of basis functions that makes the most singular part of the integral operator invertible with a continuous two-side inverse, the integral equation at hand is recast as a matrix equation at which Fredholm alternative can be applied [17].…”
Section: Introductionmentioning
confidence: 99%