Numerical Investigation of Conformal ADI-FDTD Schemes with Second-Order Convergence

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概要

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• This paper presents unconditionally stable and conformal FDTD schemes which are based on the alternating-direction implicit finite difference time domain (ADI-FDTD) method for accurate modeling of perfectly electric conducting (PEC) objects. The proposed schemes are formulated within the framework of the matrix-vector notation of the finite integration technique (FIT), which allows a systematic and consistent extension of finite difference solution of Maxwells equations on dual grids. As possible choices of second-order convergent conformal method, we apply the partially filled cell (PFC) and the uniformly stable conformal (USC) schemes for the ADI-FDTD method. The unconditional stability and the rates of convergence of the proposed conformal ADI-FDTD (CADI-FDTD) schemes are verified by means of numerical examples of waveguide problems.

著者

• FUJITA Kazuhiro

  Fujitsu Limited

• KOCHIBE Yoichi

  Fujitsu Limited

• NAMIKI Takefumi

  Fujitsu Limited

関連論文

• Numerical Investigation of Conformal ADI-FDTD Schemes with Second-Order Convergence
• Numerical Simulation of Antennas using Three-Dimensional Finite-Difference Time-Domain Method

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