Diseño y evaluación de filtros de microondas compactos basados en estructuras fractales y metamateriales.

Abstract

In the present work the design of compact microwave filters for modern radiocommunication systems was described. The technique of coupled lines was used to carry out the design. The design is based on the fractal geometry and the metamaterials because due to its characteristics, a compact structure can be obtained. Simulations were made in the HFSS (High Frequency Structure Simulator) software to check the correct design of the filters. The comparison of the characteristics obtained in each filter design was made, analyzing which one have a better miniaturization and spurious signals elimination. The Exploratory method is used, through which the current state of technology regarding fractal geometry and metamaterials and their applications in communication systems is deepened, establishing with this information the state of the art of said subject. Based on the achievement of the state of the art, the Descriptive method is applied to analyze the information obtained and to use it in the design of microwave filters based on fractals and metamaterials. The investigation applies the Empirical-Analytical paradigm and a Quantitative approach that uses mathematical operations both to characterize the technologies studied in this work, as well as for the realization of the designs of each proposed structure. The applied design methodology is Experimental because the investigated parameters are manipulated, to obtain the best characteristics of the design in terms of miniaturization and elimination of spurious.