Scattering of waves by a planar junction between conductive and impedance half-planes

Yalçin, Uğur; Umul, Yusuf Ziya

doi:10.1016/j.ijleo.2019.163943

Cited by 3 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, the symbolic expression of the vector potential introduced by Miyamoto and Wolf is used in the integral of the ETBDW (Yalçın and Umul, 2020). It aims to correct and perfect the found nonuniform field expression with the help of the Detour parameter and asymptotic correlation of the Fresnel function.…”

Section: Introductionmentioning

confidence: 99%

Uniform diffracted fields of the extended theory of BDW from the circular aperture on a perfectly magnetic conductive surface

Altınel,

Yalçın

2024

COMPEL

Self Cite

View full text Add to dashboard Cite

Purpose This paper aims to examine the uniform diffracted fields from a perfectly magnetic conductive (PMC) surface with the extended theory of boundary diffraction wave (BDW) approach. Design/methodology/approach Miyamoto and Wolf’s symbolic expression of the vector potential was used in the extended theory of BDW integral. This vector potential is applied to the problem, and the nonuniform field expression found was made uniform. Here, the expression is made uniform, using the detour parameter with the help of the asymptotic correlation of the Fresnel function. The BDW theory for the PMC surface extended the diffracted fields, and the uniform diffracted fields were calculated. Findings The field expressions obtained were interpreted with the graphs numerically for different aperture radii and observation distances. It has been shown that the BDW is continuous behind the diffracting aperture. There does not exist any discontinuity at the geometrically light-to-shadow transition boundary, as is required by the theory. Originality/value The results were graphically compared with diffracted fields for other surfaces. As far as we know, the uniform diffracted fields from the circular aperture on a PMC surface were calculated for the first time with the extended theory of the BDW approach.

show abstract

Section: Introductionmentioning

confidence: 99%

Uniform diffracted fields of the extended theory of BDW from the circular aperture on a perfectly magnetic conductive surface

Altınel,

Yalçın

2024

COMPEL

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the literature, vast numbers of the scattering problems, such as strip, wedge, halfplane, circular strip, and layered or concatenated structures satisfying different boundary conditions (Dirichlet, Neumann, and Mixed boundary conditions), have been studied for decades. Still, the scattering of electromagnetic waves by zero-thickness strips, circular arcs, or other canonical complex and canonical geometries is intensively studied [1][2][3][4][5]. Previously, diffraction by strip with conductance or resistance has been investigated in [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

H‐polarized plane wave diffraction by a slotted cylinder with different surface impedances: Solution by the analytical—Numerical approach

Tabatadze

Karaçuha

Alperen

et al. 2022

IET Microwaves Antenna & Prop

View full text Add to dashboard Cite

The study investigates the H‐polarized plane wave diffraction by a slotted cylinder with different surface impedances employing an analytical‐numerical approach. The solution is obtained by expressing the current distribution on the obstacle with Gegenbauer polynomials considering the edge conditions. To obtain the field and current distribution on the surface, the Leontovich boundary condition on each side of the slotted cylinder is employed. The results are compared with Dirichlet and Neumann boundary condition cases obtained previously. It is observed that the resonant field amplitudes and the location at the resonances strongly depend on the impedance values.

show abstract

“…The same problem was also investigated with the plane wave spectrum approach (Senior 1991). The scattering of waves by a planar junction of two half-planes with different combinations of surface boundary conditions can be found widely, but not limited to these studies, in the literature (Büyükaksoy et al 2004;Gennarelli and Riccio 2020;Pelosi et al 1998;Umul 2020;Umul 2017;Yalçın and Umul 2020).…”

Section: Introductionmentioning

confidence: 99%

Diffraction of waves by a planar junction of impedance and perfect electromagnetic conductor half-planes

Basdemir

2021

Opt Quant Electron

View full text Add to dashboard Cite

In this study, diffraction of waves by a planar junction between impedance and perfect electromagnetic conductor half-planes is investigated. The method of transition boundary is used for the solution of the problem. The diffracted wave expressions are expressed in terms of the Fresnel functions by using the uniform theory of diffraction method. Thus, finite magnitudes are obtained at the transition regions and the results are analyzed numerically for different set of parameters.

show abstract

Scattering of waves by a planar junction between conductive and impedance half-planes

Cited by 3 publications

References 16 publications

Uniform diffracted fields of the extended theory of BDW from the circular aperture on a perfectly magnetic conductive surface

Uniform diffracted fields of the extended theory of BDW from the circular aperture on a perfectly magnetic conductive surface

H‐polarized plane wave diffraction by a slotted cylinder with different surface impedances: Solution by the analytical—Numerical approach

Diffraction of waves by a planar junction of impedance and perfect electromagnetic conductor half-planes

Contact Info

Product

Resources

About