Synthesis of Smooth Wall Compact and Light- Weight Circular Horns Using the BoR-FDTD Method
Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany
Proceedings: EuCAP 2009
Pages: 4Language: englishTyp: PDF
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Authors:
Rolland, Anthony; Sauleau, Ronan; Drissi, M’Hamed (IETR, UMR CNRS 6164, University of Rennes 1, 35042 Rennes Cedex, France)
Person, Christian (LabSTICC, UMR CNRS 3192, Télécom Bretagne, 29238 Brest Cedex 3, France)
Abstract:
We describe in this paper a reliable, fast and accurate design tool for the analysis, optimisation and synthesis of axis-symmetrical antennas of arbitrary shape and constitutive materials. It is based on the combination of a FDTD kernel expressed in cylindrical coordinates with gradient methods, and binary- and real-coded genetic algorithms. To validate the numerical algorithms, several compact light-weight circular horns have been designed and compared in Ka-band. The use of metallised foam enables one to integrate phase correction lenses into the horn aperture in order to enhance the antenna gain while keeping a small size.