A locally conformal finite difference time domain (FDTD) algorithm for modeling 3-D objects with curved surfaces

@article{Dey1997ALC,
  title={A locally conformal finite difference time domain (FDTD) algorithm for modeling 3-D objects with curved surfaces},
  author={S. Dey and Raj Mittra},
  journal={IEEE Antennas and Propagation Society International Symposium 1997. Digest},
  year={1997},
  volume={4},
  pages={2172-2175 vol.4}
}
In a recent communication (Dey et al., 1997), the authors have reported a simple yet accurate technique for the FDTD analysis of curved 2-D PEC bodies using a locally-conformal grid. In this approach, the H-field is assumed to be located at the center of a Cartesian cell regardless of whether it is empty, or partially-filled with a perfect conductor. In this paper, we extend this technique to the three-dimensional cases and illustrate its application by investigating the resonant frequencies of… CONTINUE READING

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