A Study of Nonlinearity Including Feedback Memory With Application to RF Amplifiers

A Study of Nonlinearity Including Feedback Memory With Application to RF Amplifiers

A large number of systems may be modeled by placing feedback around a mildly nonlinear device. A technique for generically calculating the third-order intercept point (IP3) of these systems is developed. Common circuit configurations relevant to RF amplifiers are studied and analytical closed form e...

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Veröffentlicht in:IEEE microwave and wireless components letters 2016-03, Vol.26 (3), p.198-200
Hauptverfasser: Cook, Mackenzie, Rogers, John W. M.
Format: Artikel
Sprache:eng
Schlagworte:
Amplifiers
Circuit simulation
Closed-form solutions
IIP3 predictions
Integrated circuits
Linearity
Mathematical model
nonlinear circuit analysis
power series
Radio frequency
RF circuits
volterra series
Wireless communication
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Beschreibung
Zusammenfassung:A large number of systems may be modeled by placing feedback around a mildly nonlinear device. A technique for generically calculating the third-order intercept point (IP3) of these systems is developed. Common circuit configurations relevant to RF amplifiers are studied and analytical closed form equations for their IP3 are presented. The theoretical results are compared to simulated results obtained using commercial foundry models. The method may be applied to other circuit configurations.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2016.2526020