研究目的
To present a 2D FDFD eigenmode method that accounts for the conducting edge field singularity to improve accuracy in guided wave analysis.
研究成果
The presented 2D FDFD eigenmode method with edge singularity correction improves accuracy for coarse meshes in guided wave analysis. Combining this method with conformal techniques further enhances accuracy, making it useful for waveguide port excitation and S-parameter extraction in FDTD simulations.
研究不足
The study assumes that results using finer meshes are more accurate for validation, lacking analytical or measurement data. The method's effectiveness is demonstrated on specific structures like microstrip lines and differential pairs, potentially limiting its generalizability to other geometries.
1：Experimental Design and Method Selection:
The study leverages a finite difference frequency domain (FDFD) eigenmode method incorporating edge singularity correction for improved accuracy in analyzing guided waves.
2：Sample Selection and Data Sources:
Numerical experiments are conducted on microstrip lines and differential pairs with varying mesh sizes to validate the method.
3：List of Experimental Equipment and Materials:
The study involves simulations using FDFD and FDTD methods without specifying physical equipment.
4：Experimental Procedures and Operational Workflow:
The method modifies electric field equations near conducting edges to account for field singularities and combines with conformal techniques for complex geometries.
5：Data Analysis Methods:
Eigenvalues and electric field distributions are compared between conventional and presented methods to assess accuracy improvements.
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