Title :
Advanced power amplifier technologies for multistandard and broadband wireless communications
Author :
Wenhua Chen ; Xiaofan Chen ; Gongzhe Su ; Silong Zhang ; Ghannouchi, Fadhel M.
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
To accommodate multistandard and broadband wireless communications, advanced power amplifier (PA) design and digital predistortion (DPD) methods are investigated in this paper. For efficiency enhancement in dual-band PAs, an intermodulation tuning (IM-Tuning) technique is introduced and employed to dual-band concurrent Doherty PA design. To reduce the complexity of conventional 2D-DPD behavioral model, a 2D modified memory polynomial (2D-MMP) and an adaptive pruinng method are demonstrated. Finally, a robust DPD behavioral model with a low sampling rate is also proposed for broadband applications.
Keywords :
integrated circuit design; power amplifiers; radiocommunication; 2D modified memory polynomial; Doherty PA design; adaptive pruinng method; broadband wireless communications; digital predistortion; intermodulation tuning; power amplifier; Adaptation models; Broadband communication; Complexity theory; Dual band; Predistortion; Tuning; Doherty; Power amplifier; digital predistortion; dual-band;
Conference_Titel :
Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMiC), 2014 International Workshop on
Conference_Location :
Leuven
DOI :
10.1109/INMMIC.2014.6815086
