Journal Article10.1109/8.8610
Surface currents on impedance bodies of revolution
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TL;DR: In this article, the surface currents induced by a plane wave axially incident on a rotationally symmetric body are determined by solving numerically extended form of Maue's integral equation.
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Abstract: The surface currents induced by a plane wave axially incident on a rotationally symmetric body are determined by solving numerically extended form of Maue's integral equation. The relative surface impedance is independent of the azimuthal angle but may vary along the profile of the scatterer in any plane containing the axis of symmetry. Numerical results are shown for a sphere and a cone-sphere that are either perfectly conducting or perfectly absorbing. Apart from internal resonances, the computer code is found to provide accurate results well into the high-frequency region. A simple line-integral representation of the far field is given, and internal resonances are discussed for the backscattering radar cross section of a perfectly conducting and a perfectly absorbing sphere. >
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Citations
Electromagnetic scattering by arbitrarily shaped surfaces with impedance boundary conditions
TL;DR: In this paper, the impedance boundary condition function has been assumed linear within each triangular face, and discontinuous changes in the impedance value are allowed from face to face, which has been validated by comparison of numerical results obtained with the model and exact solutions for scattering by spheres having uniform impedance boundary conditions.
109
Electromagnetic scattering for oblique incidence on impedance bodies of revolution
TL;DR: In this paper, combined field integral equations for the surface currents induced by an obliquely incident wave on a rotationally symmetric body are considered and a computer code is described and tested on a variety of scatterers.
23
Electromagnetic retroreflection augmented by spherical and conical metasurfaces
TL;DR: In this paper, phase gradient metasurfaces conformal to spherical and conical bodies of revolution are used to enhance backscattering cross-sections of those three-dimensional geometries under illumination of a plane electromagnetic wave.
4
Numerical Solution of Boundary Integral Equation Formulations for Electromagnetic Scattering Problems
Allen W. Glisson
- 01 Jan 1992
TL;DR: In this paper, numerical solution procedures for surface integral equations that result from boundary equation formulations for electromagnetic scattering problems are considered, including the use of body of revolution geometry models and models for arbitrarily shaped scatterers.
1
Analysis of Radiation Characteristics of Imperfectly Conducting Antenna of Revolution
TL;DR: In this article, the authors investigated the radiation characteristics of imperfectly conducting antenna of revolution with arbitrarily varying surface impedance along the constant o contour and formulated the problem with an electric field integral equation and solved by the method of moments with the Hermite expansion functions as both the basis and weighting functions.
References
Radiation and scattering from bodies of revolution
TL;DR: In this paper, the problem of electromagnetic radiation and scattering from perfectly conducting bodies of revolution of arbitrary shape is considered, and the mathematical formulation is an integro-differential equation, obtained from the potential integrals plus boundary conditions at the body.
332
Scattering from bodies of revolution
TL;DR: In this article, the problem of scattering of a plane electromagnetic wave from an arbitrary metallic body of revolution is solved by a theoretical method for arbitrary incidence and polarization, which permits numerical computations by high-speed digital computers.
254
Theory of absorbers in scattering
TL;DR: In this paper, the effect of absorbers on scattering from complex shapes is considered, wherein, unlike previous work on the subject, the diffracted field is taken into account, and conditions under which the backscattered field for incident radiation is identically zero.
130
An Integral Equation Approach to Scattering From a Body of Finite Conductivity
TL;DR: In this article, the problem of scattering from a homogeneous body is formulated in terms of two coupled integral equations relating the effective electric and magnetic surface currents Ke and Km, in which each equation involves the constitutive parameters of only one medium, is especially suited to the case of a high conductivity scatterer.
116
Integral equation formulations for imperfectly conducting scatterers
L. Medgyesi-Mitschang,J. Putnam +1 more
TL;DR: In this article, integral equation formulations for characterizing the electromagnetic (EM) scattering interaction for nonmetallic surfaces are presented for general geometry, and the current expansion functions, which are chosen, result in a symmetric system of equations.
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