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Étude des structures planaires en très hautes fréquences par une nouvelle formulation de la méthode des moments dans le domaine spatial

Study of planar structures in very high frequencies using a new MoM formulation in the spatial domain

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Résumé

Ce travail est une contribution à une mise en œuvre plus rapide et plus précise de la méthode des moments dans le domaine spatial et son application pour l’étude des discontinuités dans les structures planaires micro-ondes. Une nouvelle technique d’évaluation analytique des intégrales de la matrice des moments en association avec une adaptation numérique des terminaisons des structures micro-ruban étudiées ont été élaborées, ce qui a permis de réduire considérablement le temps de calcul et d’extraire immédiatement les paramètres S. Une technique de réduction de la taille du système linéaire par limitation du nombre de fonctions de base nécessaire pour une bonne description du courant est également présentée. Cette technique est basée sur l’utilisation d’un maillage variable et de plus en plus fin à l’approche des discontinuités.

Abstract

An efficient analytical integration technique for computation of spatial method of moments (MoM) integrals in conjunction with numerical matched loads is presented. The current distribution on the device is solved by using the well-known Galerkin’s MoM procedure applied to mixed potential integral equation in the spatial domain. The scattering parameters are determined by considering infinite lines at each port where only the fundamental mode is assumed to propagate. The contribution of this work is the development of an integration technique for the computation of spatial domain integrals, that is fast and rigorous. This technique is based on a Taylor series expansion of the integrands involving only polynomial functions. The use of polynomial forms in the integrals leads an immediate analytical integration, and the computation time will be considerably reduced.

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Authors and Affiliations

  1. Unité de Recherche Composants et Systèmes électroniques, École Polytechnique de Tunisie, BP 743, 2070, La Marsa, Tunisie

    Aline Latiri & Abdelaziz Samet

  2. Institut Supérieur d’Informatique et des Techniques de Communication, 4000, Hammam Sousse, Tunisie

    Aline Latiri

  3. Laboratoire des Systèmes de Communications, ENIT, BP 37, 1002, Belvédère - Tunis, Tunisie

    Amar Bouallegue

Authors
  1. Aline Latiri
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  2. Abdelaziz Samet
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  3. Amar Bouallegue
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Latiri, A., Samet, A. & Bouallegue, A. Étude des structures planaires en très hautes fréquences par une nouvelle formulation de la méthode des moments dans le domaine spatial. Ann. Télécommun. 59, 1189–1211 (2004). https://doi.org/10.1007/BF03179715

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  • DOI: https://doi.org/10.1007/BF03179715

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