The Stability and Numerical Dispersion Study of the ADI-SFDTD Algorithm

  •  Zongxin Liu    
  •  Yiwang Chen    
  •  Xin Xu    
  •  Xuegang Sun    


In this letter, the alternating-direction-implicit (ADI) technique is applied to Symplectic finite-difference time-domain (SFDTD) method, the curl operator is endued with two different styles when doing computation from the th progression to th progression. It holds the advantages of both ADI-FDTD and SFDTD, not only eliminating the restriction of the Courant-Friedrich-Levy (CFL), but also holding the inner characteristics of Maxwell’s equations. The analytical accuracy and efficiency of the proposed method is verified good.

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