|Table of Contents|

[1] Ji Lianqing, Xu Zhiming, Zhou Jianyi, Zhai Jianfeng, et al. Highly efficient class-F power amplifierwith digital predistortion for WCDMA applications [J]. Journal of Southeast University (English Edition), 2013, 29 (2): 125-128. [doi:10.3969/j.issn.1003-7985.2013.02.003]
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Highly efficient class-F power amplifierwith digital predistortion for WCDMA applications()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
29
Issue:
2013 2
Page:
125-128
Research Field:
Electronic Science and Engineering
Publishing date:
2013-06-20

Info

Title:
Highly efficient class-F power amplifierwith digital predistortion for WCDMA applications
Author(s):
Ji Lianqing Xu Zhiming Zhou Jianyi Zhai Jianfeng
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
Keywords:
digital predistortion peak power-added efficiency drain efficiency adjacent channel power ratio efficiency linearity class-F power amplifier
PACS:
TN722
DOI:
10.3969/j.issn.1003-7985.2013.02.003
Abstract:
A digital predistorted class-F power amplifier(PA)using Cree GaN HEMT CGH40010 operating at 2.12 GHz is presented to obtain high efficiency and excellent linearity for wideband code-division multiple access(WCDMA)applications. Measurement results with the continuous wave(CW)signals indicate that the designed class-F PA achieves a peak power-added efficiency(PAE)of 75.2% with an output power of 39.4 dBm. The adjacent channel power ratio(ACPR)of the designed PA after digital predistortion(DPD)decreases from -28.3 and -27.5 dBc to -51.9 and -54.0 dBc, respectively, for a 4-carrier 20 MHz WCDMA signal with 7.1 dB peak to average power ratio(PAPR). The drain efficiency(DE)of the PA is 37.8% at an average output power of 33.3 dBm. The designed power amplifier can be applied in the WCDMA system.

References:

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Memo

Memo:
Biographies: Ji Lianqing(1986—), male, graduate; Zhou Jianyi(corresponding author), male, doctor, professor, jyzhou@seu.edu.cn.
Foundation items: The National Natural Science Foundation of China(No.60702163), the National Science and Technology Major Project(No.2010ZX03007-002-01, 2011ZX03004-003).
Citation: Ji Lianqing, Xu Zhiming, Zhou Jianyi, et al. Highly efficient class-F power amplifier with digital predistortion for WCDMA applications[J].Journal of Southeast University(English Edition), 2013, 29(2):125-128.[doi:10.3969/j.issn.1003-7985.2013.02.003]
Last Update: 2013-06-20