Reduced-order models in FDTD

@article{Kulas2001ReducedorderMI,
  title={Reduced-order models in FDTD},
  author={Lukasz Kulas and M. Morozowski},
  journal={IEEE Microwave and Wireless Components Letters},
  year={2001},
  volume={11},
  pages={422-424}
}
This letter describes a new hybrid technique for enhancing the efficiency of the finite difference time domain method (FDTD) by incorporation with in Yee's mesh a macromodel generated by an order reduction algorithm applied to the finite difference frequency domain (FDFD) wave equation defined on a higher resolution grid. This approach increases the accuracy of the calculations and reduces the overall simulation time. 
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