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Mesh metal antennas into triangles and dielectric into tetrahedra for solving analysis equations

Meshing is the process of converting the continuous domain into the discrete domain for solving the equations. For discretizing surfaces, typically either triangles or rectangles are used. Antenna Toolbox™ uses triangular element for meshing metal antennas and tetrahedra for meshing dielectrics. Both the above methods conforms better for arbitrary shaped surfaces. The triangles are used to approximate the surface current using the Rao-Wilton-Glisson (RWG) basis functions. To get an accurate result, ensure that large number of triangles are present in the region where current variation is the highest. This region is typically either the corners in the antenna geometry or at the point where the antenna is excited.


MeshReaderRead properties of mesh (Since R2023b)


meshMesh properties of metal, dielectric antenna, or array structure
meshconfigChange meshing mode of antenna, array, custom antenna, custom array, or custom geometry
memoryEstimateEstimate memory required to solve antenna or array mesh (Since R2024a)


  • Meshing

    Method of Moments (MoM) is a numerical method that transforms Maxwell’s continuous integral equations into an approximate discrete formulation that requires inversion of a large matrix.