Estudio de diferentes tipos de transiciones planar de microondas en banda x.

Abstract

In this project, the study of planar transitions is proposed which includes the design and simulation of the structures on a substrate with low relative permittivity (FR-4) in the X band. The designs of the planar transitions are: microstrip-coplanar waveguide, microstrip-coplanar lines, coplanar waveguide-coplanar lines, coplanar lines-slotline, slotline-coplanar waveguide, coaxial-coplanar waveguide. First, there will be a brief description of the types of simple planar structures that are used to make the transitions, in addition to the analysis of the theory that helps to the design of the planar transitions. Next, the comprehensive manipulation of the CST Studio Suite simulator will be carried out, where the main tools for the modeling of the structures, the simulation and the presentation of results will be exposed. In those structures that include connections with coaxial lines, a characteristic impedance of 50 Ω will be considered in the feeding design. The analysis of the results of all the mentioned transitions will be carried out by means of the S parameters (losses due to reflection and transmission) provided by the CST Studio Suite simulator.