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A new optimization method for antenna design

Une nouvelle méthode d’optimisation pour la conception d’antennes

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Abstract

The authors consider the class of conformal antennas consisting of bounded smooth closed curves in two dimensions and determine the surface field which maximizes power radiated in angular sector. The problem is cast as one of optimal control with the control set consisting of the surface current, constrained to have energy bounded by some constant, and the cost functional is taken to be the far field power radiated in an angular sector. A constructive algorithm is presented for approximating both the optimal value of the cost functional and the surface current which produce this optimal value. Bothte andtm polarizations are considered.

Analyse

Les auteurs considèrent une classe d’antennes conformées représentées par des courbes fermées, régulières et limitées et tente de déterminer la distribution de courant sur l’antenne qui optimise la puissance rayonnée dans un secteur angulaire donné ainsi que le diagramme de rayonnement correspondant. L’étude est limitée à des structures cylindriques infinies de façon à traiter des problèmes bidimensionnels. On présente un algorithme qui permet de déterminer la valeur optimale de la puissance rayonnée et du courant de surface de l’antenne, considérant les champste ettm.

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Authors and Affiliations

  1. Department of Mathematical Sciences, University of Delaware, 19711, Newark, Delaware, USA

    Thomas Strong Angell & Ralph Ellis Kleinman

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  1. Thomas Strong Angell
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  2. Ralph Ellis Kleinman
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Angell, T.S., Kleinman, R.E. A new optimization method for antenna design. Ann. Télécommun. 40, 341–349 (1985). https://doi.org/10.1007/BF03003642

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  • DOI: https://doi.org/10.1007/BF03003642

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