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

Title
Estimation of RF PA Non-Linearities After Cross-Correlating Current and Output Voltage
Type
Article in International Scientific Journal
Year
2010
Authors
Pedro Fonseca Mota
(Author)
FEUP
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José A. Machado da Silva
(Author)
FEUP
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Ricardo A. Veiga
(Author)
FEUP
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Journal
Vol. 26 No. 1
Pages: 25-35
ISSN: 0923-8174
Publisher: Springer Nature
Indexing
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COMPENDEX
INSPEC
Scientific classification
FOS: Engineering and technology > Electrical engineering, Electronic engineering, Information engineering
CORDIS: Technological sciences > Technology > Micro-technology > Microsystems ; Technological sciences > Engineering > Electronic engineering ; Technological sciences > Engineering > Communication engineering > Telecommunications engineering
Other information
Authenticus ID: P-003-9ER
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.
Language: English
Type (Professor's evaluation): Scientific
License type: Click to view license CC BY-NC
Documents
File name Description Size
jetta2010 Journal of Electronic Testing-Volume 26, Number 1, 25-35, DOI: 10.1007/s10836-009-5128-0 647.25 KB
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