Wave Scattering by a Perfect Electromagnetic Conductor Wedge Residing Between Isorefractive Media

Basdemir, Husnu Deniz

doi:10.2528/pierm20050903

Cited by 3 publications

(3 citation statements)

References 23 publications

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“…Besides half-plane, the wedge problem has been studied for more than 70 years considering the different cases such as boundary condition, excitation, combination with other geometries, layered-media case, etc. [7][8][9]. Apart from half-plane and wedge problems, there are geometries such as strips, ring, circular strip, and apertures and their combinations or variants.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Scattering by Arbitrarily Located Electric and/or Magnetic Conducting Double-Strip

Karacuha,

Tabatadze

2024

Gazi University Journal of Science

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The study presents electromagnetic scattering by arbitrarily located double strips with perfect electric and/or magnetic conducting surfaces. The study generalizes not only the physical dimension, location, and orientation of the strips but also, the boundary conditions on each strip are generalized and variable. It can be Dirichlet or Neumann boundary conditions. Since the study considers numerous parameters as the variable, the comparison between the present study and the literature is investigated in detail. Geometries such as parallelly located double strips with fractional boundary conditions, impedance double strips, and wedge problems are considered to compare. Besides, the proposed methodology is compared by the method of moments, the method of auxiliary sources, and the orthogonal polynomials approach. The suggested research investigates the electromagnetic scattering by finite wedge and arbitrarily located two strips with different boundary conditions and widths for the first time since each strip can have different widths and boundary conditions (Dirichlet or Neumann). The results reveal that the angle between the strips, the rotation of the strips, width of the strip have noticeable effects on the scattered field and total radar cross-sections. Between the strips, resonances are observed and their characteristics have a substantial dependency on the boundary conditions.

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Section: Introductionmentioning

confidence: 99%

Electromagnetic Scattering by Arbitrarily Located Electric and/or Magnetic Conducting Double-Strip

Karacuha,

Tabatadze

2024

Gazi University Journal of Science

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“…There are several reasons that researchers focus on the topic such as developing faster converging numerical approaches [18][19][20], employing different boundary conditions [12], [21], and proposing new mathematical perspectives [22][23][24][25]. In [18], near-zero-index objects involved in electromagnetic problems are investigated through a novel surface integral equation formulation.…”

Section: Introductionmentioning

confidence: 99%

“…Also, smoothing canonically parametrized contours for super-algebraically convergent algorithms is analyzed in [19]. Besides, the two-dimensional geometries intensively are studied not only for clarifying how the proposed methodologies' convergence is faster but also they are investigated how the electromagnetic wave behave in the vicinity of different boundary conditions or medium and resonances, reflections and radar cross section in such scenarios are examined [5], [12], [21]. In addition to these aforementioned reasons, two dimensional electromagnetic problems yield to develop or propose a novel or hybrid approaches in time and frequency domains [23], [24].…”

Section: Introductionmentioning

confidence: 99%

A fundamental approach: E-polarized electromagnetic wave diffraction by two dimensional arbitrary-shaped objects with impedance boundary condition

Tabatadze

Karaçuha

Zaridze

et al. 2022

Journal of Electrical Engineering

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In the present study, a new methodology in computational electromagnetics is developed for two-dimensional arbitrarily-shaped objects with impedance boundary conditions. The proposed approach investigates the E-polarized electromagnetic diffraction by a two-dimensional object with the Leontovich boundary condition. The scattered electric and magnetic fields are expressed as the convolution integral of the corresponding Green’s function and the current induced on the obstacle surface. After obtaining integral equations by applying the boundary condition, the integral equations are solved as in the case of the method of auxiliary sources (MAS) which is a well-known method in computational electrodynamics. The results are compared with first, different methods such as the method of moments (MoM), orthogonal polynomials (OP), and second, different boundary conditions such as Dirichlet, Neumann, and fractional boundary conditions. Some results are also obtained for the different shape scatterers at some values of the surface impedance.

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Physical optics approach to wave diffraction by a perfect electromagnetic conductor half-plane

Umul

2021

Opt Quant Electron

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Wave Scattering by a Perfect Electromagnetic Conductor Wedge Residing Between Isorefractive Media

Cited by 3 publications

References 23 publications

Electromagnetic Scattering by Arbitrarily Located Electric and/or Magnetic Conducting Double-Strip

Electromagnetic Scattering by Arbitrarily Located Electric and/or Magnetic Conducting Double-Strip

A fundamental approach: E-polarized electromagnetic wave diffraction by two dimensional arbitrary-shaped objects with impedance boundary condition

Physical optics approach to wave diffraction by a perfect electromagnetic conductor half-plane

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