Diseño y construcción de un prototipo de analizador vectorial de redes de bajo costo con interfaz gráfica

Abstract

At the moment of analyzing devices that work in the microwave range, it is necessary to consider other aspects that are not done at low frequencies, which gives rise to new characterization techniques when performing the quadrupole analysis, one of the most accepted at high frequencies they are scattering parameters or S-parameters that by means of the measurements of incident, reflected and transmitted wave in different ports, allows us the characterization of the devices under test. The instruments that measure scattering parameters are known as Vector Network Analyzer or simply VNA, which at present are very expensive and involve a large investment to acquire them and contribute to the investigation of high frequency devices. The purpose of the development of this work is to build a vector analyzer of networks, starting from the design of a directional coupler, power splitter and based on the Ad8302 module, and a function generator AD4351, in order to obtain the measurements of the parameters of dispersion S11 and S21. Also develop a graphical interface to visualize the results of phase magnitude and Smith Chart, through the Raspberry Pi3 module.