Projeto de um Amplificador de Baixo Ruído com Polarização Ativa para Receptores ADS-B

Marina F Santos, Melissa Bilher, Sinara Matos, Lucas Severo

DOI: 10.14209/SBRT.2020.1570658178

Evento: XXXVIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais (SBrT2020)

Keywords: ADS-B LNA Low Noise Amplifier

Abstract

This work presents the design of a low noise amplifier (LNA) targeted to be used in 1.09 GHz ADS-B receivers. The design aims to satisfy the communication standard requirements, using low cost components. In order to reduce the amplifier variability under temperature and voltage variations, a closed-loop active bias is used. The circuit was designed and prototyped using a FR4 laminate. The electrical characterization shows a power gain of 11.32 dB and power consumption below 180 mW with both input and output at 50 Ω. The noise figure (NF) was estimated to be around 2.65 dB.

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