Abstract
In this study we present another joint application of the bond graph approach and the scattering formalism for an electrical modeling of a patch antenna array. First, the aim of our application is to build the overall bond graph model of the antenna array using the first principle (physical interpretation to bond graph word of a physical system) of the developed technique by our research team. Second, the simplified model, performed on the found conventional bond graph model gives us easily, on the one hand, the scattering matrix S ij (applying the analytical operating procedure); on the other hand, the electrical model of the patch antenna array. The proposed technique is validated by a comparative study between the simulations of the scattering parameters S ij of the studied structure and the simulations of those founded directly from the electrical model of the antenna. In this study we recall that, the used networks patch antenna has multi-triangular and geometric structures.
Highlights
The communication wireless systems which has a micro strip structure was the origin of the development printed antennas (Ferchichi et al, 2009) which are often used in networks to improve performance and enable the realization of very special functions
The new electrical modeling technique, which we have developed since 2009 (Taghouti and Mami, 2009), and which is based on the jointly use of two approaches often namely: the scattering formalism
The interconnection between two sections of the antenna is effected via the junction ‘’0’’, this leads to the simplified and acausal bond graph model of the multi-triangular antenna array (Taghouti and Mami, 2010) (Fig. 7):
Summary
The communication wireless systems which has a micro strip structure was the origin of the development printed antennas (patch antenna laminated antennas) (Ferchichi et al, 2009) which are often used in networks to improve performance and enable the realization of very special functions. Following the wide varieties of communication systems, the choice of type of antenna, the parameters studied and the study tool vary from one application to another For these reasons, the choice of tools for modeling and simulation is very important. The analytical method used is developed by Taghouti and Mami (2009) where they used, jointly, the bond graph approach (Kamel and Dauphin-Tanguy, 1993) and the Scattering formalism (Paynter et al, 1988) for the electrical modeling of patch antennas with different structures. At the first part of this study, we present the basics of the physical analysis method for the modeling patch antennas by the bond graph approach (Taghouti and Mami, 2011). The validation of the proposed method is performed by a comparative study between the simulations of the scattering parameters Sij of the studied structure and the simulations of those founded directly from the electrical model of the antenna (Taghouti and Mami, 2012)
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