研究目的
To formulate and solve electromagnetic problems involving both conducting and anisotropic media using volume-surface integral equations (VSIEs) and to accelerate the solving process for electrically large problems.
研究成果
The hybrid scheme simplifies the implementation of solving VSIEs for conducting-anisotropic media and allows the use of unstructured or nonconforming meshes for the anisotropic part. The incorporation with MLFMA accelerates the solution for electrically large problems, and the approach's good performance is verified through a numerical example.
研究不足
The paper does not explicitly mention limitations, but the complexity of discretizing and solving VSIEs for large and complex geometries could be a potential challenge.
1：Experimental Design and Method Selection:
The study uses a hybrid scheme combining the method of moments (MoM) for the conducting part and a point-matching scheme for the anisotropic part of the VSIEs. The multilevel fast multipole algorithm (MLFMA) is incorporated to accelerate the solution for electrically large problems.
2：Sample Selection and Data Sources:
A numerical example involving a conducting sphere coated with uniaxially anisotropic material is used to demonstrate the approach.
3：List of Experimental Equipment and Materials:
Not explicitly mentioned in the paper.
4：Experimental Procedures and Operational Workflow:
The surface of the conducting part is discretized into triangular patches, and the anisotropic part is discretized into tetrahedral elements. The electric current density on the conductor is expanded by the RWG basis function, and the volumetric current densities inside the anisotropic medium are represented by those at the centroid of each tetrahedron.
5：Data Analysis Methods:
The bistatic radar cross section (RCS) for the object is calculated and compared with exact Mie-series solutions.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
