Optimum design of a new predistortion scheme for high linearity K-band MMIC power amplifiers

Bianco, P. ; Donati Guerrieri, S. ; Ghione, G. ; Pirola, M. ; Naldi, C.U. ; Florian, C. ; Vannini, G. ; Santarelli, A. ; Filicori, F. ; Manfredi, L. (2001) Optimum design of a new predistortion scheme for high linearity K-band MMIC power amplifiers. In: Gallium Arsenide applications symposium. Gaas 2001, 24-28 September 2001, London.
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Abstract

A novel predistortion approach well suited for MMIC design is discussed. The theoretical analysis shows third-order intermodulation product (IMP3) cancellation independent of the specific technology exploited for implementation and of the detailed behaviour of the power stage nonlinearity; further improvements can be obtained through optimization. The active stages of the predistorter are modeled through a nonlinear describing function, which can be experimentally characterized through standard LS S-parameters measurements. The predistortion scheme has been implemented within the Agilent ADS environment and applied to the linearity optimization of a power amplifier stage. In accordance with theoretical results, significant improvement in the linearity of the Pin-Pout is demonstrated together with IMP3 reduction. A sensitivity analysis on the optimization parameters is also presented, showing that this approach is robust and well suited for circuit design.

Abstract
Tipologia del documento
Documento relativo ad un convegno o altro evento (Atto)
Autori
AutoreAffiliazioneORCID
Bianco, P.
Donati Guerrieri, S.
Ghione, G.
Pirola, M.
Naldi, C.U.
Florian, C.
Vannini, G.
Santarelli, A.
Filicori, F.
Manfredi, L.
Settori scientifico-disciplinari
DOI
Data di deposito
17 Giu 2004
Ultima modifica
17 Feb 2016 13:33
URI

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