Implementación de un set de atenuadores y filtros de alta frecuencias utilizando tecnologia MMIC y Microstrip para el Laboratorio de Comunicaciones y Microondas en la FIE-ESPOCH.

Abstract

The present research work entitled: "IMPLEMENTATION OF A SET OF ATTENUATORS AND HIGH FREQUENCY FILTERS USING MMIC AND MICROSTRIP TECHNOLOGY FOR THE LABORATORY OF COMUNICATIONS AND MICROWAVE IN THE FACULTY OF COMPUTING AND ELECTRONICS (FIE)-ESCUELA SUPERIOR POLITÉCNICA DE CHIMBORAZO (ESPOCH).", it was developed with the aim of being a contribution in the study area for the High Frequency subject's professors and students of the Engineering in Electronics, Telecommunications and Networks Career. This set is compounded by five Band-pass filters using the Microstrip Technology that operated through frequencies of 1 to 2 GHz, 2 to 4 GHz, 4 to 7 GHz, 7 to 9 GHz and 8.5 to 9.4 GHz, respectively excluding signals not located in these ranges. The filters were designed in base of known elements and simulates in Ansoft Designer Software, because this technology is very suitable when a small-size filter at high frequencies is required and the AutoCAD tools, it was completed the implementation. With the objective to avoid damage as much as integrated circuits and equipment measuring of the laboratories, this set also will be acquiesced by the implementation of three attenuators with the technology of Monolithic Microwave Integrated Circuits (MMIC), that it to say the Fixed Attenuator Lat, Pat and Yat of -10+. The substratum which was implemented the filters and the attenuator tracks is Roger -R04003C™ obtaining optimal results with minimal losses and homogeneous dielectric constants. To the S/E of each Filter and Attenuator the female connectors SMA are weld, with a characteristic impedance of 50 'Q, operating a frequency range from O to 12.4 GHz, that is to say that is inside the establish range. Realizing all the laboratory tests that determined the fulfillment with the rules and technical specifications, it was recommended in the implementation use a computer numerical control (CNC) to improve the tracks print in the establish material.