Estimation of RF PA Non-Linearities After Cross-Correlating Current and Output Voltage

• Tipo: Artigo em Revista Científica Internacional
• Data: 2010

Autores

Pedro Fonseca Mota (Autor) FEUP; José A. Machado da Silva (Autor) FEUP; Ricardo A. Veiga (Autor) FEUP

Revista

Título: Journal of Electronic Testing: Theory and Applications (JETTA)

Vol. 26 Nº 1

Páginas: 25-35

ISSN: 0923-8174

Editora: Springer Nature

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 0 Citações

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Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia electrotécnica, electrónica e informática

CORDIS: Ciências Tecnológicas > Tecnologia > Micro-tecnologia > Micro-sistemas ; Ciências Tecnológicas > Engenharia > Engenharia electrónica ; Ciências Tecnológicas > Engenharia > Engenharia de comunicações > Engenharia de telecomunicações

Outras Informações

ID Authenticus: P-003-9ER

DOI: DOI 10.1007/s10836-009-5128-0

Abstract (EN): The estimation of 1 dB compression and third-order intercept points can be obtained after the cross-correlation between dynamic current and output voltage of radio frequency power amplifiers. This estimation is performed using actual power measures and not power inferred from voltage measurements. The underlining theory and a correlator that allows implementing this measurement on-chip are presented. The trade-off between measuring voltage and the actual power is also discussed and it is shown that different information concerning the output load is obtained when observing the PA’s output voltage and power. Simulation results, obtained with the model of a prototype demonstration chip, show that good accuracy can be obtained with relatively simple measurement conditions. These results include the analysis of optimum stimuli amplitudes and the effect of noise in estimation accuracy.

Idioma: Inglês

Tipo (Avaliação Docente): Científica