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

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. © 2017 IEEE.
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https://hal-univ-rennes1.archives-ouvertes.fr/hal-01622683
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Submitted on : Tuesday, October 24, 2017 - 3:38:22 PM
Last modification on : Wednesday, October 14, 2020 - 3:53:04 AM

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M. Bodehou, D. Gonzalez-Ovejero, C. Craeye, I. Huynen. Numerical analysis of modulated metasurface antennas using Fourier-Bessel basis functions. 2017 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications, NEMO 2017, May 2017, Nagoya, Japan. ⟨10.1109/NEMO.2017.7964219⟩. ⟨hal-01622683⟩

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