Diseño e implementación de amplificador de alta frecuencia en la banda K con tecnología MMIC para el Laboratorio de Comuniciones de la ESPOCH.

Abstract

A high frequency amplifier was designed and implemented in the K band with Microwave Monolithic Integrated Circuits (MMIC) technology for the Communication Laboratory of the Polytechnic School of Chimborazo. The study of the availability of the electronic components with which the device was developed was carried out. It was considered an architecture of blocks of amplifiers, which allowed from the operation of all the blocks as a whole, to cover a greater range of frequencies. The device consists of integrated circuits, passive components and protection circuits with microstrip technology, these being mainly attenuators, which were designed according to the needs of each amplifier in order to avoid damage to both integrated circuits and measuring equipment. . At the output of each amplification module, microstrip combiners were implemented that collect the signals from each of the outputs, which allowed obtaining a single output of the entire system. For the union of all the modules, the use of 50-ohm coaxial cable was proposed, forming a single device within a previously designed structure with the respective inputs according to the frequency range required to amplify and a single output. Performance tests were performed and measurements were taken, it was obtained that the system provides an amplification of up to 22 dBm in a wide range of frequencies ranging from 0.05 GHz to 26.5 GHz, so it is concluded that the device provides a considerable bandwidth In addition, the system allows the amplification of high frequency waves, making possible a device of smaller size and with low transmission losses. It is recommended to read the user manual, which explains in detail the use of the device and the safe configuration of the measuring equipment.