A new discontinuous Galerkin Finite Element Time Domain (DG-FETD) method for Maxwell's equations is developed. It can suppress spurious modes using basis functions based on polynomials with the same order of interpolation for electric field intensity and magnetic flux density (EB scheme). Compared to FETD based on EH scheme, which reqires different orders of interpolation polynomials for electric and magnetic field intensities, this method uses fewer unknowns and reduces the computation load. The discontinuous Galerkin method is employed to implement domain decomposition for the EB scheme based FETD. In addition, a well-posed time-domain perfectly matched layer (PLM) is extended to the EB scheme to simulate the unbounded problem. Leap frog method is utilized for explicit time stepping. Numerical results demonstrate that the above proposed methods are effective and efficient for 2D time domain TMz multi-domain problems.
2. Monk, P., Finite Element Method for Maxwells Equations, Oxford, 2003.
3. Silvester, P. and R. Ferrari, "Finite Elements for Electrical Engineers," Cambridge University Press, 1996.
4. Andersen, L. and J. Volakis, "Development and application of a novel class of hierarchical tangential vector finite elements for electromagnetics," IEEE. Trans. Antennas Propagat., Vol. 47, No. 1, 112-120, 1999.
5. Volakis, J., T. Ozdemir, and J. Gong, "Hybrid finite-element methodologies for antennas and scattering," IEEE. Trans. Antennas Propagat., Vol. 45, No. 3, 493-507, 1997.
6. Tonti, E., "Finite formulation of the electromagnetic fiel," Progress In Electromagnetics Research, Vol. 32, 1-44, 2001.
7. Polycarpou, A., P. Tirkas, and C. Balanis, "The finite-element method for modeling circuits and interconnects for electronic packaging," IEEE Trans. Microw. Theory Techn., Vol. 45, No. 10, 1868-1874, 1997.
8. Lee, J., R. Lee, and A. Cangellaris, "Time-domain finite-element methods," IEEE. Trans. Antennas Propagat., Vol. 45, No. 3, 430-442, 1997.
9. Jiao, D. and J. Jin, "A general approach for the stability analysis of the time-domain finite-element method for electromagnetic simulations," IEEE. Trans. Antennas Propagat., Vol. 50, No. 11, 1624-1632, 2002.
10. Petersson, L. and J. Jin, "A three-dimensional time-domain finite-element formulation for periodic structures," IEEE. Trans. Antennas Propagat., Vol. 54, No. 1, 12-19, 2006.
11. Vaseghi, B., N. Takorabet, and F. Meibody-Tabar, "Transient finite element analysis of induction machines with stator winding turn fault," Progress In Electromagnetics Research, Vol. 95, 1-18, 2009.
12. Faghihi, F. and H. Heydari, "A combination of time domain finite element-boundary integral and with time domain physical optics for calculation of electromagnetic scattering of 3-D structures ," Progress In Electromagnetics Research, Vol. 79, 463-474, 2008.
13. Mur, G., "The finite-element modeling of three-dimensional time-domain electromagnetic fields in strongly inhomogeneous media," IEEE Trans. Magn., Vol. 28, No. 2, 1130-1133, 1992.
14. Gedney, S. and U. Navsariwala, "An unconditionally stable finite element time-domain solution of the vector wave equation," IEEE Microw. Guided Wave Lett., Vol. 5, No. 10, 332-334, 1995.
15. Tsai, H., Y. Wang, and T. Itoh, "An unconditionally stable extended (USE) finite-element time-domain solution of active nonlinear microwave circuits using perfectly matched layers," IEEE Trans. Microw. Theory Techn., Vol. 50, No. 10, 2226-2232, 2002.
16. Jiao, D., J. Jin, E. Michielssen, and D. Riley, "Time-domain finiteelement simulation of three-dimensional scattering and radiation problems using perfectly matched layers ," IEEE. Trans. Antennas Propagat., Vol. 51, No. 2, 296-305, 2003.
17. Cangellaris, A. and Point-matched time, "Point-matched time domain finite element methods for electromagnetic radiation and scattering," IEEE. Trans. Antennas Propagat., Vol. 35, No. 10, 1160-1173, 1987.
18. Wong, M., O. Picon, and V. Fouad Hanna, "A finite element method based on whitney forms to solve Maxwell equations in the time domain," IEEE Trans. Magn., Vol. 31, No. 3, 1618-1621, 1995.
19. Feliziani, M. and F. Maradei, "An explicit-implicit solution scheme to analyze fast transients by finite elements," IEEE Trans. Magn., Vol. 33, No. 2, 1452-1455, 1997.
20. Donderici, B. and F. Teixeira, "Mixed finite-element time-domain method for transient Maxwell equations in doubly dispersive media," IEEE Trans. Microw. Theory Techn., Vol. 56, No. 1, 113-120, 2008.
21. Donderici, B. and F. Teixeira, "Conformal perfectly matched layer for the mixed finite element time-domain method," IEEE. Trans. Antennas Propagat., Vol. 56, No. 4, 1017-1026, 2008.
22. Yioultsis, T., N. Kantartzis, C. Antonopoulos, and T. Tsiboukis, "A fully explicit whitney element-time domain scheme with higher order vector ¯nite elements for three-dimensional high frequency problems ," IEEE Trans. Magn., Vol. 34, No. 5, 3288-3291, 1998.
23. Guillouard, K., M. Wong, V. Fouad Hanna, and J. Citerne, "A new global time-domain electromagnetic simulator of microwave circuits including lumped elements based on finite-element method," IEEE Trans. Microw. Theory Techn., Vol. 47, No. 10, 2045-2049, 1999.
24. Sekine, T. and H. Asai, "Mixed finite element time domain method based on iterative leapfrog scheme for fast simulations of electromagnetic problems," IEEE International Symposium on Electromagnetic Compatibility (EMC), 2011, 596-601, 2011.
25. Cohen, G. and M. Durufle, "Non spurious spectral-like element methods for Maxwell's equations," J. Comput. Math., Vol. 25, 282-300, 2007.
26. Winkler, J. R. and J. B. Davies, "Elimination of spurious modes in finite element analysis," J. Computat. Phys., Vol. 56, 1-14, 1984.
27. Tobon, L., J. Chen, and Q. H. Liu, "Spurious solutions in mixed finite element method for Maxwell's equations: Dispersion analysis and new basis functions," J. Computat. Phys., Vol. 230, No. 19, 7300-7310, 2011.
28. Chen, J., L. Tobon, M. Chai, J. Mix, and Q. H. Liu, "Effcient implicit-explicit time stepping scheme with domain decomposition for multiscale modeling of layered structures ," IEEE Trans. Compon. Packag. Manuf. Technol., Vol. 1, No. 9, 1438-1446, 2011.
29. Chen, J. and Q. H. Liu, "A non-spurious vector spectral element method for Maxwell's equations," Progress In Electromagnetics Research, Vol. 96, 205-215, 2009.
30. Cangellaris, A. and H. Wu, "Domain decomposition and multi-scale finite elements for electromagnetic analysis of integrated electronic systems ," IEEE International Symposium on Electromagnetic Compatibility (EMC), 2005, Vol. 3, 817-822, 2005.
31. Gedney, S., T. Kramer, C. Luo, J. Roden, R. Crawford, B. Guernsey, J. Beggs, and J. Miller, "The discontinuous Galerkin finite element time domain method (DGFETD)," IEEE International Symposium on Electromagnetic Compatibility (EMC), 2008 , 1-4, 2008.
32. Lu, T., W. Cai, and P. Zhang, "Discontinuous Galerkin time domain method for gpr simulation in dispersive media," IEEE Trans. Seosci. Remote Sens., Vol. 43, No. 1, 72-80, 2005.
33. Gan, H. and D. Jiao, "A time-domain layered finite element reduction recovery (LAFE-RR) method for high-frequency VLSI design," IEEE. Trans. Antennas Propagat., Vol. 55, No. 12, 3620-3629, 2007.
34. Canouet, N., L. Fezoui, and S. Piperno, "Discontinuous Galerkin time-domain solution of Maxwell's equations on locally-refined nonconforming cartesian grids ," COMPEL: Int. J. for Computation and Maths. in Electrical and Electronic Eng., Vol. 24, No. 4, 1381-1401, 2005.
35. Shi, Y. and C.-H. Liang, "Simulations of the left-handed medium using discontinuous Galerkin method based on the hybrid domains ," Progress In Electromagnetics Research, Vol. 63, 171-191, 2006.
36. Nedelec, J., "A new family of mixed finite elements in R3," Numerische Mathematik, Vol. 50, No. 1, 57-81, 1986.
37. Nedelec, J., "Mixed finite elements in R3," Numerische Mathematik, Vol. 35, No. 3, 315-341, 1980.
38. Peterson, A., S. Ray, and R. Mittra, , Computational Methods for Electromagnetics, Vol. 24, IEEE Press, New York, 1998.
39. Fan, G.-X. and Q. H. Liu, "A strongly well-posed PML in lossy media," IEEE Antennas Wireless Propagat. Lett., Vol. 2, No. 7, 97-100, 2003.
40. Liu, Q. H., "The PSTD algorithm: A time-domain method requiring only two cells per wavelength," Microwave and Optical Technology Letters, Vol. 15, 158-165, 1997.