Title
Digital Predistortion of Ultra-Broadband mmWave Power Amplifiers with Limited Tx/Feedback Loop/Baseband Bandwidth.
Abstract
A novel digital predistortion (DPD) technique is proposed to linearize ultra-broadband millimeter wave (mmWave) power amplifiers (PAs) by only employing very limited bandwidth resources for the Tx, feedback loop (FB), and baseband (BB). Compared to the conventional methods, the proposed method will comprehensively reduce the bandwidth requirements for the whole system, which will make the linearization affordable for mm Wave PAs. To validate the proposed idea, a 4-carrier 320 MHz modulated signal was employed to excite a mmWave PA with the center frequency of 41 GHz. Experimental results have proven that the proposed method can effectively realize the PA linearization with very narrow Tx/FB/BB bandwidth, which largely extends the capability of DPD to the forthcoming 5G era.
Year
DOI
Venue
2018
10.1155/2018/4510243
WIRELESS COMMUNICATIONS & MOBILE COMPUTING
Field
DocType
Volume
Baseband,Computer science,Computer network,Broadband,Feedback loop,Electronic engineering,Bandwidth (signal processing),Center frequency,Linearization,Predistortion,Amplifier
Journal
2018
ISSN
Citations 
PageRank 
1530-8669
0
0.34
References 
Authors
3
5
Name
Order
Citations
PageRank
Chao Yu112.06
Qianyun Lu200.34
Honglei Sun300.68
Xingwang Wu400.34
Xiao-Wei Zhu502.37