Geodesic
Recent advances in shape optimization techniques of 3-D integrated lens antennas
Ronan Sauleau1 ; Gaël Godi1 ; Barbara Barès1
1 Institut d'Electronique et de Télécommunications de Rennes (IETR), www.ietr.org. UMR CNRS 6164, Université de Rennes 1, Campus de Beaulieu, Bâtiment 11D, Avenue du Général Leclerc, 35042 Rennes Cedex, France. Email: ronan.sauleau@univ-rennes1.fr
ESAIM. Proceedings, Tome 22 (2008), pp. 88-95 Cet article a éte moissonné depuis la source EDP Sciences

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We describe here two design methodologies for the shape optimization of a particular kind of focusing devices, the so-called 3-D integrated lens antennas (ILAs). The objective is to determine the best lens shapes that comply with given radiation characteristics. The first technique is a step-wise approach: the first step consists in solving the synthesis problem using Geometrical Optics (GO) principles, and, in the second one, the GO shape is optimized locally to fulfill the target specifications. This approach leads to an ill-posed problem and is only applicable to single-shell configurations. To overcome these limitations, an alternative technique consists of a global optimization of the ILA, using genetic algorithms (GAs) for instance. The capabilities of both design tools are highlighted numerically. Future trends in the shape optimization of lens antennas are also discussed.
DOI : 10.1051/proc:072208

Ronan Sauleau 1 ; Gaël Godi 1 ; Barbara Barès 1

1 Institut d'Electronique et de Télécommunications de Rennes (IETR), www.ietr.org. UMR CNRS 6164, Université de Rennes 1, Campus de Beaulieu, Bâtiment 11D, Avenue du Général Leclerc, 35042 Rennes Cedex, France. Email: ronan.sauleau@univ-rennes1.fr 
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     title = {Recent advances in shape optimization techniques of {3-D} integrated lens antennas},
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Ronan Sauleau; Gaël Godi; Barbara Barès. Recent advances in shape optimization techniques of 3-D integrated lens antennas. ESAIM. Proceedings, Tome 22 (2008), pp. 88-95. doi: 10.1051/proc:072208

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