Simulador electromagnético de estructuras mixtas conductoras de hilo grueso y superficies planas

Abstract

This paper presents a recently developed electromagnetic simulator which overcomes some of the traditional limitations of commercial software packages that analyze wire antennas combined with surface patches. A full Galerkin approach of the Method of Moments using subdomain triangle functions is employed to solve the frequency domain Electric Field Integral Equation (EFIE) for wire conducting structures. The full kernel of the EFIE is numerically computed using a suitable integration scheme. By doing so, it is possible to properly analyze moderately thick wire antennas. The analysis of the flattened surface patches is performed using rooftop basis and testing functions defined in triangular or rectangular cells. The junction of the wire and surface patches is modeled by using a new attachment mode which allows the wire to be placed everywhere inside the mesh cells. The new attachment mode has shown to be specially well suited for working in conjunction with rooftop basis functions.