Desenvolvimento de um programa para análise de antenas de microfita simples

Abstract

This work presents the development and results of a MATLAB-code to do the first ap-proach in the design and to analyze simple microstrip antennas. The analyses have been per-formed considering simple empiric models that have been validated with simulations carried out with Ansoft DESIGNER and HFSS. The developed code allows the analysis of probe-fed rectangular microstrip antennas by employing the transmission line and the cavity models. The radiation patterns are computed considering two radiation models: two-slot model and the combination of electric surface cur-rent density with the Green’s function of the structure. After the validation of results, one has verified that the developed code performs the analyses much faster and with lower computational resources in comparison to full-wave methods. This feature is crucial for the investigation of planar microstrip arrays composed of several elements.