Analysis of Axially Symmetrical Coaxial Discontinuity Structures by Using Two-Dimensional Nonuniform Finite-Difference Frequency Domain Method

By combining the main features of the 2D finite-difference time domain (FDTD) method and the traditional finite-difference frequency domain (FDFD) method, a 2D FDFD method with nonuniform grids and perfectly matched layers (PML) is presented in this paper to analyze axially symmetrical coaxial disco...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2008-06, Vol.44 (6), p.1170-1173
Main Authors: Ruifeng Huang, Ruifeng Huang, Daming Zhang, Daming Zhang, Lin Li, Lin Li
Format: Article
Language:English
Subjects:
Coaxial components
Coaxial discontinuity structure
Computational efficiency
Cross-disciplinary physics: materials science
rheology
Discontinuity
Exact sciences and technology
Finite difference method
Finite difference methods
Finite difference time domain method
finite-difference frequency domain (FDFD) method
finite-difference time domain (FDTD) method
Frequency domain analysis
Frequency domains
Frequency response
Magnetism
Materials science
Mathematical analysis
Mathematical models
mode matching method
Mode matching methods
Nonuniform
Other topics in materials science
Perfectly matched layers
Physics
Power engineering and energy
S parameters
Time domain analysis
Two dimensional
Two dimensional displays
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Summary:By combining the main features of the 2D finite-difference time domain (FDTD) method and the traditional finite-difference frequency domain (FDFD) method, a 2D FDFD method with nonuniform grids and perfectly matched layers (PML) is presented in this paper to analyze axially symmetrical coaxial discontinuity structures. Numerical results show that the 2D FDFD method is much more efficient than the commonly used 2D FDTD method in solving the frequency response of the structures. High accuracy of the 2D FDFD method is shown in a simple numerical example which can be solved by using the mode matching method.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2008.916541