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

fYear

2014

fDate

2-4 April 2014

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Integrated Nonlinear Microwave and Millimetre-wave Circuits (INMMiC), 2014 International Workshop on

Conference_Location

Leuven

Type

conf

DOI

10.1109/INMMIC.2014.6815086

Filename

6815086