Diseño e implementación de un amplificador de potencia para la banda de frecuencia de 0.05 Ghz a 6 Ghz con tecnología MMIC.

Abstract

Low-cost power amplifiers were designed and implemented to operate at frequencies below 6 GHz using monolithic microwave integrated circuits (MMICs). This development effectively provided the Telecommunications department with suitable equipment for practical laboratories in the communication field at the Polytechnic School of Chimborazo. A comprehensive review of the existing literature related to amplifiers, MMIC technology, microwave circuit design, and the availability of electronic components was carried out to develop the device. Based on the knowledge acquired during the literature review, a plan was devised, encompassing component selection, amplifier block architecture, material choice, and consideration of protective circuits. Implementation and construction activities were carried out to involve component acquisition, circuit board fabrication, and amplifier assembly. Exhaustive tests and measurements were conducted on the amplifiers using appropriate measurement equipment and signal generators to evaluate their performance across a frequency range from 0.05 GHz to 6 GHz. Data obtained during the tests were collected and analyzed to assess frequency response and gain of each amplifier. It determined that the system provided a maximum gain of 18 dBm for the PHA-1H+ amplifier and 14 dBm for the PMA-5451+ amplifier. Consequently, it was concluded that the devices effectively exhibited signal amplification at high frequencies, enabling a compact system creation with low transmission losses.