Split-component PML absorbing conditions for SS-TLM - Archive ouverte HAL
Article Dans Une Revue International Journal of Numerical Modelling: Electronic Networks, Devices and Fields Année : 2004

Split-component PML absorbing conditions for SS-TLM

Résumé

Known as alternate direct implicit (ADI) or split-step (SS) schemes, a new class of time-domain algorithms has recently been proposed. Their salient feature concerns their numerical stability, regardless the time-step used. Thus, significant computational advantages can be obtained when non-uniform mesh is used. To study open structures or determine S-parameters, absorbing boundary conditions (ABC) have to be used. The perfectly matched layers (PML) technique based on split field component is implemented for the SS-TLM algorithm. The complete set of updating equations is provided and the new PML is validated. It is shown to provide high accuracy even better than that of classical PML-TLM scheme. In addition, it is found that using a high time-step does not seem to degrade significantly the accuracy of PML. Thus, the PML technique is very well adapted to SS-TLM as confirmed by various applications. Finally, unlike all classical TLM-PML schemes, the technique is found to be stable.
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Dates et versions

hal-03690719 , version 1 (08-06-2022)

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Sandrick Le Maguer, Michel Ney. Split-component PML absorbing conditions for SS-TLM. International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, 2004, 17 (3), pp.179-191. ⟨10.1002/jnm.541⟩. ⟨hal-03690719⟩
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