This article aims to evaluate the abilities of Gaussian beam techniques to compute the interaction between an electromagnetic field and a multilayer dielectric object. First, we propose an approach to expand a field on a set of elementary Gaussian beams from a curved surface. Then, we study two techniques to compute the interaction: a Gaussian beam shooting and bouncing algorithm and another original approach using the Gaussian beam transmission and reflection coefficients. We analyse the advantages (rapidity/accuracy) of these two techniques with respect to a conventional approach to compute the radiation of an antenna protected by a radome.
Abstract-In this article, we propose to apply the Gabor expansion to describe magnetic and electric currents given on a regular curved interface in dimension 2. From this description, we show that the computation of the current radiation can be performed by the introduction of a new kind of gaussian beams. We call them the conformal gaussian beams. Their analytic formulation is obtained using an asymptotic evaluation of the radiation integrals. Their properties are discussed and an application example is presented.
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