研究目的
Investigating an efficient and fast method for analyzing electromagnetic wave scattering from a smooth shaped PEC using Gauss-Legendre quadrature technique and mapping the 3D Physical Optics integral to 2D integral.
研究成果
The proposed method significantly reduces computation time and memory usage by avoiding surface meshing and employing the Gauss-Legendre quadrature technique for integration. It shows excellent agreement with conventional PO methods and is particularly efficient for large structures. The technique's speed and accuracy make it a promising tool for analyzing electromagnetic wave scattering from smooth PEC surfaces.
研究不足
The method's efficiency is demonstrated on smooth surfaces and specific geometries (square plate, circle plate, parabolic reflector antennas). Its performance on more complex or irregular surfaces is not explored. Additionally, the study does not address the method's applicability to non-PEC materials.
1：Experimental Design and Method Selection:
The study employs the Gauss-Legendre quadrature technique for numerical integration and maps the 3D Physical Optics integral to a 2D integral to avoid surface meshing and reduce computation time.
2：Sample Selection and Data Sources:
Three scattering problems are analyzed to evaluate the method's efficiency, including backscattering from a square plate, a large circle plate, and radiation pattern of parabolic reflector antennas under Gaussian feed incidence.
3：List of Experimental Equipment and Materials:
A PC with core i7 @
4：4 GHz CPU and 16 GB RAM is used for computations. The code is written in MATLAB 2017 software. Experimental Procedures and Operational Workflow:
The method involves mapping the surface integral into standard two-dimensional integrals on a plane and applying the Gauss-Legendre quadrature technique for integration.
5：Data Analysis Methods:
The results are compared with those obtained using the physical optics solver available in FEKO to evaluate accuracy and computation time.
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