Scattering of electromagnetic waves from a thin triangular dielectric disk
| Autor: | Z.A. Awan, Hassan Ullah |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Scattering Numerical analysis Function (mathematics) Dielectric Method of moments (statistics) Electromagnetic radiation Atomic and Molecular Physics and Optics Square (algebra) Electronic Optical and Magnetic Materials Computational physics Gallium arsenide chemistry.chemical_compound chemistry Electrical and Electronic Engineering |
| Zdroj: | Optik. 227:165224 |
| ISSN: | 0030-4026 |
| Popis: | An analytic theory for the scattering of electromagnetic waves from a thin dielectric triangular disk is presented. The proposed theory is based on the Koh–Sarabandi approximation for the electromagnetic wave scattering from a thin dielectric disk along with the spectral representation of the dyadic Green's function. The validity of the proposed formulation is justified by comparing it with the numerical method such as method of moments. For completeness, the scattering cross sections of a triangular disk for horizontal and vertical incident polarizations are compared with their respective scattering cross sections of elliptical, circular, semi-circular and square disks having same electromagnetic and geometrical parameters. It is studied that the back scattering cross sections for a low loss Gallium Arsenide triangular disk at a specific incidence angle can be made almost zero for both types of incident polarizations. This type of almost zero back scattering has applications in the stealth technology and remote sensing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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