研究目的
To deepen the basic understanding of computer simulation analysis of EM-wave absorbers by explaining the finite-difference time-domain (FDTD) method and finite element (FE) method in detail, including their fundamental principles.
研究成果
The FDTD and FE methods are powerful tools for analyzing EM-wave absorbers, with the FDTD method suitable for time-domain analysis and the FE method effective for problems involving complex geometries and material properties. The paper demonstrates the application of these methods through examples, including the analysis of a rubber ferrite EM-wave absorber and the development of an eddy current absorber for thermal therapy applications.
研究不足
The analysis is fundamentally based on closed regions, requiring absorption boundary conditions for problems like EM-wave absorbers arranged in an infinitely extending space. The accuracy depends on the cell size, with smaller cells increasing accuracy but also computational time and memory requirements.
