Finite Element Electromagnetic Simulator
Term
4. Semester
Education
Publication year
2021
Submitted on
2021-06-03
Pages
74
Abstract
An electromagnetic Finite Element Method (FEM) simulator is implemented for multiport homogeneous waveguide networks. A mathematical and theoretical description of FEM is discussed. Principles of reference triangles and numerical integration are utilized to implement the algorithm. The application Gmsh is used to generate a single order tetrahedron mesh used by the FEM algorithm. Scattering parameters and electric fields are constructed for the FEM implementation created in this thesis. The S-parameters and Efield from the developed implementation are compared with the analytical solution of a TE10 perfect conductor waveguide, the Finite Integration Technique (FIT), and the FEM algorithm from CST Studio Suite by Dassault Systems. In the passband region for S21, it is found that the magnitude attained from our implementation has an error of -71.56 dB and -70.26 dB for CST-FEM and CST-FIT, respectively.
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