Numerical analysis of modulated metasurface antennas using Fourier-Bessel basis functions

Bodehou, Modeste;Gonzales-Ovejero, D.;Craeye, Christophe;Huynen, Isabelle
(2017) IEEE Conference on Numerical, Electromagnetic multiphysics and optimization, for RF, microwave and terahertz applications — Location: Sevilla, Spain (17.May.2017)

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Authors
  • Bodehou, ModesteUCLouvain
    Author
  • Gonzales-Ovejero, D.IETR - Institut d'Electronique et de Télécommunications de Rennes, Rennes, France
    Author
  • Craeye, ChristopheUCLouvain
    Author
  • Huynen, Isabelleorcid-logoUCLouvain
    Author
Abstract
Metasurfaces are thin (2D) metamaterials designed for manipulating the dispersion properties of surface-waves (SWs) or the reflection properties of incident plane-waves. Thanks to the sub-wavelength sizes of the patches used in the implementation step, these surfaces can be described by a surface impedance boundary condition (IBC). In this paper, we investigate a 'Method of Moments' (MoM) based analysis of such surface with a family of entire-domain basis functions named 'Fourier-Bessel' functions. The orthogonality property of these functions on a disk allows us to represent any smooth current distribution in an effective manner and thereby to drastically reduce the size of the MoM matrix.
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Bodehou, M., Gonzales-Ovejero, D., Craeye, C., & Huynen, I. (2017). Numerical analysis of modulated metasurface antennas using Fourier-Bessel basis functions. Proceedings of the IEEE Conference on Numerical, Electromagnetic multiphysics and optimization, for RF, microwave and terahertz, p. 3 pages. https://doi.org/10.1109/NEMO.2017.7964219