Absorbing boundary conditions in the context of the hybrid ray-FDTD moving window solution

Y. Pemper*, B. Fidel, E. Heyman, R. Kastner, R. W. Ziolkowski

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


The hybrid ray-finite difference time domain (FDTD) is used for the propagation of electromagnetic pulse in homogeneous and inhomogeneous media. This method is cast in the Lagrange formulation, where the field equations are transformed into a moving frame. The moving frame formulation is extended to 3D and applied to track propagating wavepackets. The numerical dispersions and the stability conditions are derived using a unified approach. Boundary conditions for the moving frame scheme are derived by diagonalizing the field equations, identifying the backward propagating and stationary eigenfunctions as the basic two independent unknowns and imposing numerical absorption or specification.

Original languageEnglish
Pages (from-to)1006-1009
Number of pages4
JournalIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
StatePublished - 1997
EventProceedings of the 1997 IEEE Antennas and Propagation Society International Symposium. Part 1 (of 4) - Montreal, Can
Duration: 13 Jul 199718 Jul 1997


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