Estudio comparativo de lentes utilizados en antenas para la colimación de haces a una frecuencia de operación de 30 GHz por medio de simulaciones electromagnéticas.

Abstract

In the present work, the design, modeling and simulation of three types of lenses are carried out: a refractive surface lens with homogeneous dielectric material, a Luneburg lens and a Mikaelian lens, at an operating frequency of 30 GHz, and their respective power supply low gain. First, an overview of lens-type antennas, their history, development, advantages, disadvantages, types, and applications are presented. In addition, the characteristics of each of the lens to be simulated and the mathematical theory for their design are described. Then, the design and modeling of the low gain radiator and the three types of lenses are carried out. The designed structures are modeled in the CST Studio Suite simulation software. Finally, the simulation of each one of the lenses is carried out together with its low gain power supply in CST Studio Suite and a parametric analysis of the results obtained based on directivity, gain, efficiency and radiation pattern is presented. For a more extensive analysis, the variation of the geometric parameters of the structure is carried out, such us the position of the feed and the dimensions of the lens.