Electromagnetic Scattering by Parallel Metamaterial Cylinders

Shooshtari, Alireza; Sebak, A.

doi:10.2528/pier05071103

Cited by 30 publications

(21 citation statements)

References 8 publications

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“…Here we are applying this concept to circular structures in order to obtain analytic series solution, while in other cases it will not be possible to analyze without numerical solutions for surface integral equations. Tremendous work was done to study the electromagnetic scattering from conducting cylinders with coating materials and can be found in literature [31][32][33][34][35][36][37][38][39][40]. The objective of this paper is to study the scattering from a conducting cylinder coated with a metamaterials layer and loaded with conducting helical strips by using the ASBC.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Scattering From Conducting Circular Cylinder Coated by Meta-Materials and Loaded With Helical Strips Under Oblique Incidence

Hady¹,

Kishk²

2008

PIER B

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Abstract-The asymptotic strip boundary condition (ASBC) isapplied to analyze the solution of the electromagnetic scattering from a conducting cylinder coated with a homogeneous linear material layer and loaded with conducting helical strips. Such homogeneous material layer can be implemented by a conventional dielectric material, a single negative (SNG) or double negative (DNG) meta-material layer. A study of different materials' constitutive parameters is presented with accordance to Drude and Lorentz material modeling. The boundary condition assumes that the strips are rounded around the coated cylinder in a helical form and both the strip's period and the spacing between the helix turns are very small and mathematically approaching the zero. Scattering due to normal and oblique incident plane waves (θ i , φ i ) of arbitrary polarization using the series solution is also computed. A number of parametric studies were investigated to illustrate the advantages of using metamaterials compared with conventional coating materials in terms of strip's rounding pitch angle and coating layer electrical thickness variations. It is also shown that for SNG materials, modified Bessel functions are used to accept negative arguments. Coating with metamaterials proves to achieve higher forward scattering compared with conventional materials for the same electrical coating thickness.

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Section: Introductionmentioning

confidence: 99%

Electromagnetic Scattering From Conducting Circular Cylinder Coated by Meta-Materials and Loaded With Helical Strips Under Oblique Incidence

Hady¹,

Kishk²

2008

PIER B

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“…The electromagnetic scattering from single and array of cylinders coated by metamaterials, which have both negative permittivity and permeability, for both normal and oblique incidence had been studied in [5][6][7][8]. Only two-dimensional cases are considered.…”

Section: Introductionmentioning

confidence: 99%

Scattering From Bodies Coated With Metamaterial Using FDFD Method

Zainud-Deen¹,

Botros²,

Ibrahim³

2008

PIER B

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Abstract-The electromagnetic scattering from a conducting object coated with metamaterials, which have both negative permittivity and permeability is derived rigorously by using finite difference frequency domain (FDFD). A formulation for the FDFD method is presented. The scattering from circular and multilayers elliptic cylinder coated by metamaterial are investigated. Also, the scattering from dielectric and metamaterial sphere is depicted. Numerical results are compared with the available data in the literature.

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“…Electromagnetic scattering problems of perfectly conducting cylinder and parallel metamaterial cylinders are studied in [14,15]. RCS of a target with lossy background has been calculated using parabolic equation method in [16].…”

Section: Introductionmentioning

confidence: 99%

Scattering Behaviour of Fractal Based Metallo-Dielectric Structures

Chandran¹,

Gopikrishna²,

Aanandan³

et al. 2007

PIER

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Abstract-The scattering behaviour of fractal based metallodielectric structures loaded over metallic targets of different shapes such as flat plate, cylinder and dihedral corner reflector are investigated for both TE and TM polarizations of the incident wave. Out of the various fractal structures studied, square Sierpinski carpet structure is found to give backscattering reduction for an appreciable range of frequencies. The frequency of minimum backscattering depends on the geometry of the structure as well as on the thickness of the substrate. This structure when loaded over a dihedral corner reflector is showing an enhancement in RCS for corner angles other than 90 • .

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Electromagnetic Scattering by Parallel Metamaterial Cylinders

Cited by 30 publications

References 8 publications

Electromagnetic Scattering From Conducting Circular Cylinder Coated by Meta-Materials and Loaded With Helical Strips Under Oblique Incidence

Electromagnetic Scattering From Conducting Circular Cylinder Coated by Meta-Materials and Loaded With Helical Strips Under Oblique Incidence

Scattering From Bodies Coated With Metamaterial Using FDFD Method

Scattering Behaviour of Fractal Based Metallo-Dielectric Structures

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