Title :
RF Wideband Power Amplifier Performance Improvement with Reconfigurable Matching Networks
Author :
Perez-Cisneros, Jose-Ramon ; Garcia-Ducar, Paloma ; Carro, Pedro Luis ; Valdovinos, Antonio ; de Mingo, Jesus
Author_Institution :
Dept. of Electron. Eng. & Commun., Univ. of Zaragoza, Zaragoza, Spain
Abstract :
An optimized process for linearity and efficiency performance using a reconfigurable matching network (RMN) for power amplifiers (PAs) is presented. Long-term evolution (LTE) waveforms modeled as multisine excitations are used to simulate a general purpose PA, assuming that the antenna is perfectly matched. Selecting RMN state for linearity the adjacent channel power ratio (ACPR) is improved while obtaining efficiency enhancement. Moreover, it is shown that power added efficiency (PAE) is highly increased selecting properly RMN state while linearity also improves. With this architecture both linearity and efficiency are improved simultaneously.
Keywords :
Long Term Evolution; radiofrequency power amplifiers; wideband amplifiers; ACPR; LTE waveform; Long-Term Evolution waveform; PA; PAE; RF wideband power amplifier performance improvement; RMN; adjacent channel power ratio; multisine excitation; power added efficiency; reconfigurable matching network; Computer architecture; Integrated circuit modeling; Linearity; Power amplifiers; Power generation; Switches; Wideband;
Conference_Titel :
Vehicular Technology Conference (VTC Spring), 2014 IEEE 79th
Conference_Location :
Seoul
DOI :
10.1109/VTCSpring.2014.7023076
