Implementación de un sistema de arreglo de antenas con alimentación de amplitud no uniforme para el mejoramiento del sll: implementación de una red de alimentación de amplitud no uniforme para un arreglo de antenas para la reducción de lóbulos secundarios.

Abstract

This work reviews the design, simulation, implementation, and subsequent analysis of a non-uniform amplitude power supply system for the improvement of the SLL on an FR4 substrate with a working frequency of 5 GHz. The initial chapter briefly describes fundamental concepts for this project such as power dividers, beamforming networks, power attenuators and mathematical distributions. Listing characteristics and classification of each of the concepts. Chapter two briefly describes in a clear way the most important points for the design, simulation and subsequent implementation of the power system, the Wilkinson 1:2 splitter will be the starting point of this design without forgetting that it must provide a theoretical attenuation of –3dB and a gap of 90° between the input and the outputs. After these outputs, other wilkinson dividers of similar characteristics are coupled until a 1:8 Wilkinson divider is obtained as a result. Finally, the attenuators must be coupled in the corresponding outputs to have the required powers. Chapter three presents the complete design of the power systems and their implementation on the characterized FR4 substrate. In addition to the measurements that can be seen in tables where the relative errors with respect to the simulations are calculated. In chapter four are the conclusions obtained from the analysis of results of the previous chapter and together with some recommendations.