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Finite Element Implementation of the Generalized-Lorenz Gauged A- <tex-math notation='LaTeX'>$\Phi $ </tex-math> Formulation for Low-Frequency Circuit Modeling
- Source :
- IEEE Transactions on Antennas and Propagation. 64:4355-4364
- Publication Year :
- 2016
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2016.
-
Abstract
- The A- $\Phi $ formulation with generalized-Lorenz gauge is free of catastrophic breakdown in low-frequency regime. In the formulation, A and $\Phi $ are completely separated and Maxwell’s equations are reduced into two independent equations pertinent to A and $\Phi $ . This, however, leads to more complicated equations in contrast to the traditional E formulation. The numerical dicretization of the equations is challenging, especially for the equation pertinent to A. By virtue of the differential forms theory and Whitney elements, the direct action of divergence operator on A is bypassed. Thus, the equations can be discretized compatibly using regular finite element method. The condition of the resultant matrix system is much better than that of the E formulation as frequency becomes low, and even approaches to zero. The generalized-Lorenz gauged A- $\Phi $ formulation is verified to be accurate and efficient for low-frequency circuit problems.
- Subjects :
- 010302 applied physics
Discretization
Independent equation
Differential form
Mathematical analysis
Zero (complex analysis)
020206 networking & telecommunications
02 engineering and technology
Gauge (firearms)
01 natural sciences
Finite element method
Matrix (mathematics)
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
Boundary value problem
Electrical and Electronic Engineering
Mathematics
Subjects
Details
- ISSN :
- 15582221 and 0018926X
- Volume :
- 64
- Database :
- OpenAIRE
- Journal :
- IEEE Transactions on Antennas and Propagation
- Accession number :
- edsair.doi...........e88025b72d4af1d7b51db03dd349d8b9