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Implementation of Berenger absorbing boundary conditions in TLM by interfacing FDTD perfectly matched layers

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2 Author(s)

Berenger's perfectly matched layer (PML) absorbing boundary condition is implemented for the first time in a TLM mesh. This is achieved through a special interface between the FDTD-PMLs and the TLM lattice. Application to rectangular waveguides yields reflections less than -50dB at frequencies up to six times the cutoff frequency. These absorbing boundary conditions are compared with one-way equation absorbing boundary conditions and with matched layers having only electric losses

Published in:

Electronics Letters  (Volume:31 ,  Issue: 15 )