Higher order inhomogeneous impedance boundary conditions for perfectly conducting objects

Özgür Özdeimr; Ibrahim Akduman; Ali Yapar; Lorenzo Crocco

doi:10.1109/TGRS.2007.893564

Higher order inhomogeneous impedance boundary conditions for perfectly conducting objects

Özgür Özdeimr^*, Ibrahim Akduman, Ali Yapar, Lorenzo Crocco

^*Corresponding author for this work

Department of Electronics and Communication Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

A new, simple, and fast method for the solution of electromagnetic scattering problems for perfectly conducting objects of arbitrary shape is presented. The method is based on an equivalent representation of the conducting object in terms of a circular one having a higher order impedance boundary condition on its surface. As a first result, a new universal relation between the higher order surface impedances and the shape of the object is obtained. Then, by taking advantage of this relationship, the scattering problem related to a conducting object is recast as the solution of a matrix equation whose coefficients are determined from the higher order impedances. Numerical simulations show that the method yields to accurate results, and that, it is computationally effective.

Original language	English
Pages (from-to)	1291-1297
Number of pages	7
Journal	IEEE Transactions on Geoscience and Remote Sensing
Volume	45
Issue number	5
DOIs	https://doi.org/10.1109/TGRS.2007.893564
Publication status	Published - May 2007

Funding

Manuscript received August 11, 2006; revised November 24, 2006. This work was supported by the TUBITAK, Turkish Scientific and Technological Research Council under Grant 105E029.

Funders	Funder number
TUBITAK
Turkish Scientific and Technological Research Council	105E029

Keywords

Electromagnetic scattering
Impedance boundary condition (IBC)
Numerical methods

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10.1109/TGRS.2007.893564

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AU - Özdeimr, Özgür

AU - Akduman, Ibrahim

AU - Yapar, Ali

AU - Crocco, Lorenzo

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Y1 - 2007/5

N2 - A new, simple, and fast method for the solution of electromagnetic scattering problems for perfectly conducting objects of arbitrary shape is presented. The method is based on an equivalent representation of the conducting object in terms of a circular one having a higher order impedance boundary condition on its surface. As a first result, a new universal relation between the higher order surface impedances and the shape of the object is obtained. Then, by taking advantage of this relationship, the scattering problem related to a conducting object is recast as the solution of a matrix equation whose coefficients are determined from the higher order impedances. Numerical simulations show that the method yields to accurate results, and that, it is computationally effective.

AB - A new, simple, and fast method for the solution of electromagnetic scattering problems for perfectly conducting objects of arbitrary shape is presented. The method is based on an equivalent representation of the conducting object in terms of a circular one having a higher order impedance boundary condition on its surface. As a first result, a new universal relation between the higher order surface impedances and the shape of the object is obtained. Then, by taking advantage of this relationship, the scattering problem related to a conducting object is recast as the solution of a matrix equation whose coefficients are determined from the higher order impedances. Numerical simulations show that the method yields to accurate results, and that, it is computationally effective.

KW - Electromagnetic scattering

KW - Impedance boundary condition (IBC)

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JO - IEEE Transactions on Geoscience and Remote Sensing

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Higher order inhomogeneous impedance boundary conditions for perfectly conducting objects

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