Trapping effect for an open screen illuminated by a fixed source

Велиев, Е. И.; Veremei, V. V.; Nosich, Alexander I.; Shestopalov, V. P.

doi:10.1007/bf01034297

Cited by 2 publications

(10 citation statements)

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“…In Equation ( 20), the corresponding scattered field expression for each scatterer is provided [20][21][22]:…”

Section: H-polarized Casementioning

confidence: 99%

“…Again, at this point, the corresponding current densities are represented by the Gegenbauer polynomials. Note that ν should be 0.5 in this case to satisfy the edge condition [14,15,20,22].…”

Section: H-polarized Casementioning

confidence: 99%

“…In Equation (), the corresponding scattered field expression for each scatterer is provided [20–22]:

{\quad H}_{z}^{s,i}(r,\varphi )={{\Omega}}_{i}\underset{0{}}{\overset{2\pi }{\int }}{\tilde{J}}_{{S}_{i}}\left({\varphi }^{\prime }\right)\frac{\partial {H}_{0}^{(1)}(k\,\vert r-{r}_{i}^{\prime }\vert )}{\partial {r}_{i}^{\prime }}d{\varphi }^{\prime },\quad i=1,\,2

where

{\tilde{J}}_{{S}_{i}}

is the induced current density on the circular strip,

{\tilde{{\Omega}}}_{i}

is constant‐coefficient, taken as one and omitted through the study.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

“…In these studies, a combination of strip and arc geometries with a limited investigation on radiation patterns and current density distribution were provided for mainly H-polarized cases [20][21][22]. However, in the literature, a complete study, including theoretical derivation, numerical investigation, and comparison related to double arcs with various aperture and variable rotation angles, has not been examined by the proposed method yet [20][21][22]. Besides, a complete study, including comparison with the Method of Moments (MoM) and Method of Auxiliary Sources (MAS), has not been conducted before [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…However, in the literature, a complete study, including theoretical derivation, numerical investigation, and comparison related to double arcs with various aperture and variable rotation angles, has not been examined by the proposed method yet [20][21][22]. Besides, a complete study, including comparison with the Method of Moments (MoM) and Method of Auxiliary Sources (MAS), has not been conducted before [20][21][22]. Therefore, the investigation on rotation, radii, aperture size, and near field distribution for both polarization cases is conducted first.…”

Section: Introductionmentioning

confidence: 99%

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A new approach in electromagnetic plane wave diffraction by two concentric slotted cylinders with variably placed slits: E and H polarized cases

Karaçuha

Tabatadze

Alperen

et al. 2022

IET Microwaves Antenna & Prop

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The study investigates the electromagnetic plane wave diffraction by two concentric slotted cylinders with variably placed slits. Unlike the previous studies, the effect of rotation on the resonance characteristics and near‐field distributions is analyzed in the present work, which is not studied yet. The study focuses on diffraction by both E‐ and H‐polarized plane waves. A semi‐analytical method is preferred to obtain the physical properties such as resonances and near and far‐field radiation patterns. The advantage of the method is to employ the analytical and numerical tools together. Due to having both E‐ and H‐polarized plane waves, Dirichlet and Neumann Boundary conditions are considered and analyzed, respectively. After obtaining the mathematical expressions for the current density, near and far‐field, and total radar cross‐section, the different results are compared with the Method of Moment and the Method of Auxiliary Sources. The comparison demonstrates that the proposed method coincides with other well‐known methods. The outcomes reveal that the aperture size and the rotation angle have a significant role in the radiation characteristics.

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“…In Equation ( 20), the corresponding scattered field expression for each scatterer is provided [20][21][22]:…”

Section: H-polarized Casementioning

confidence: 99%

Section: H-polarized Casementioning

confidence: 99%

“…In Equation (), the corresponding scattered field expression for each scatterer is provided [20–22]:

{\quad H}_{z}^{s,i}(r,\varphi )={{\Omega}}_{i}\underset{0{}}{\overset{2\pi }{\int }}{\tilde{J}}_{{S}_{i}}\left({\varphi }^{\prime }\right)\frac{\partial {H}_{0}^{(1)}(k\,\vert r-{r}_{i}^{\prime }\vert )}{\partial {r}_{i}^{\prime }}d{\varphi }^{\prime },\quad i=1,\,2

where

{\tilde{J}}_{{S}_{i}}

is the induced current density on the circular strip,

{\tilde{{\Omega}}}_{i}

is constant‐coefficient, taken as one and omitted through the study.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A new approach in electromagnetic plane wave diffraction by two concentric slotted cylinders with variably placed slits: E and H polarized cases

Karaçuha

Tabatadze

Alperen

et al. 2022

IET Microwaves Antenna & Prop

View full text Add to dashboard Cite

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Te Excitation of an Unclosed Circular Cylinder at the Planar Penetrable Interface

Veremey¹,

Nosich

Veremey

1993

Electromagnetics

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An analysis of two-dimensional scattering from an unclosed circular cylinder in the vicinity of the plane penetrable interface between two semi-infinite ho~nogcneous half spaces of the same or of different electromagnetic properties is presented. The perfectly conducting axially slotted cylinder is of infinite extent and the excitation is transverse electric to the cylinder axis. The final infinite system of linear algebraic equations for expansion coefficients of the current density function is obtained from the dual series equations by the method of Riemann-Hilbert Problem. The system may be solved by truncation of an infinite matrix with further usage of ordinary inversion methods. The cylinder is excited by a plane wave or by a line ~nagnetic-current source. Some data displaying the frequency dependencies of the scattering cross-sectio~l and radiation resistance, as well as the far-field patterns, are presented and discussed.

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Trapping effect for an open screen illuminated by a fixed source

Cited by 2 publications

References 0 publications

A new approach in electromagnetic plane wave diffraction by two concentric slotted cylinders with variably placed slits: E and H polarized cases

A new approach in electromagnetic plane wave diffraction by two concentric slotted cylinders with variably placed slits: E and H polarized cases

Te Excitation of an Unclosed Circular Cylinder at the Planar Penetrable Interface

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