Title :
A low-complexity memoryless model for envelope tracking RF power amplifiers
Author :
Montoro, Gabriel ; Gilabert, Pere L. ; Garcia, J.A. ; Ruiz, M.N. ; Marante, R.
Author_Institution :
Dept. of Signal Theor. & Commun., Univ. Politec. de Catalunya (UPC-BarcelonaTech), Castelldefels, Spain
Abstract :
This paper presents a new kind of behavioral model structure for characterizing static nonlinearities in dynamically supplied RF power amplifiers. The proposed architecture is based on the combination of several basic cells and it is focused to simplify the real-time design and implementation of adaptive shaping functions devoted to improve the efficiency in systems controlled by digital signal processors with tight computational capabilities, such is the case of handsets and small-cells.
Keywords :
digital signal processing chips; radiofrequency power amplifiers; adaptive shaping functions; digital signal processors; envelope tracking RF power amplifiers; static nonlinearity; Adaptation models; Baseband; Computational modeling; Estimation; Mathematical model; Power amplifiers; Radio frequency; amplifiers linearity and efficiency; envelope tracking modeling; shaping function;
Conference_Titel :
European Microwave Integrated Circuit Conference (EuMIC), 2014 9th
Conference_Location :
Rome
DOI :
10.1109/EuMIC.2014.6997900
