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Le maillage parallélipipédique et le changement de maille dans la méthode TLM en 3 dimensions (Parallelipiped meshing and mesh change in the 3D TLM method)

Le maillage parallélipipédique et le changement de maille dans la méthode TLM en 3 dimensions (Parallelipiped meshing and mesh change in the 3D TLM method)

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La théorie des mailles parallélipipédiques et du changement de maille dans la méthode TLM est exposée. Des résultats sont donnés pour des structures fin-line en cavité. Le temps de calcul est réduit dans un rapport considérable pour de nombreux problèmes.The letter shows how the introduction of parallelepiped meshes and a variable-size mesh into the original three-dimensional TLM method leads to a dramatic reduction of the CPU time needed. The theoretical aspects of these modifications are given, as well as some numerical results obtained for ‘fin-line’ structures in a cavity.

References

    1. 1)
      • P.B. Jöhns , R.L. Beurlé . Numerical solution of two dimensional scattering problems using a transmission line matrix. Proc. IEE , 1203 - 1208
    2. 2)
      • Akhtarzad, S.: `Analysis of lossy microwave structures and microstrip resonators by TLM method', 1975, Ph.D. thesis, , Nottingham.
    3. 3)
      • P. Saguet , E. Pic . Le maillage rectangulaire et le changement de maille dans la méthode TLM en 2 dimensions. Electron. Lett. , 227 - 279
    4. 4)
      • P. Saguet , E. Pic . Utilisation d'un nouveau type de noeud dans la méthode TLM en 3 dimensions. Electron. Lett. , 478 - 480
    5. 5)
      • Hoefer, W.J.R., Ros, A.: `Fin-line parameters calculated with TLM method', IEEE MTT-S Int. Mic. Symp., April–May 1979, .
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