Implementación de un amplificador de pequeña señal de máxima ganancia disponible para que funcione en la banda de LoRa

Abstract

Abstract: LoRa is a technology that enables low-cost, long-range wireless communications. consumption between Internet of Things (IoT) devices, to improve the capacity of communication of LoRa devices efficiently and without introducing distortions or significant interference a small signal amplifier was designed, simulated and implemented based on the BFP 420 transistor at the frequency of 915 MHz. This transistor is configured in common emitter, it is polarized by collector feedback and uses two methods different types of stabilization, as both input and output coupling, networks are used of pi type coupling and the gain obtained at the frequency of 915 MHz is 12.84 dB, counting with a reflection parameter S11 of -21.27 dB, reaching an NF of 2.55 dB.