.png){kind=icon}
返回
Efficient Linear Amplification Using Digitally Predistorted Overdriven Power Amplifiers
.png){kind=icon}
PRE
AI
DOI：10.1109/TBC.2015.2419191.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
This paper investigates the effects of crest factor reduction and digital predistortion on the performances of communication and broadcasting systems. The overdrive of digitally predistorted power amplifiers is proposed for power efficient linear amplification of amplitude modulated signals having high peak to average power ratio. This is achieved by adding, at the input of the digital predistortion system, a clipping function to allow for an overdrive of the linearized power amplifier while meeting spectrum emission mask linearity requirements. The proposed technique is experimentally validated using a GaN Doherty power amplifier driven by long-term evolution (LTE) signals. Measurement results show that the over-driven power amplifier can deliver up to 2.5 dB extra output power, up to 80% enhancement in the power utilization factor, and up to 20% relative increase in the power efficiency while being compliant with the linearity requirements of the LTE standard.
Keyword:
Digital predistortion
long-term evolution (LTE)
memory effects
nonlinear distortions
peak to average power ratio (PAPR)
power amplifier (PA)
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
4.8
论文数:
2.1K
被引数:
3.0K
机构
暂无机构信息
引用论文
Cross-Talk between Mucosal-Associated Invariant T, Natural Killer, and Natural Killer T Cell Populations is Implicated in the Pathogenesis of Placenta Accreta Spectrum.png)
Inflammation
OAAI
InflammationIF0
OAAI分享收藏分享收藏分享收藏A Convenient Synthesis of Some (1-Alkylethenyl)arenes and Bis(1-alkylethenyl)arenesSynthesis
SynthesisIF0
PREAI
分享收藏Simplified Approach to Optimized Iterative Clipping and Filtering for PAPR Reduction of OFDM Signals
PREAI
分享收藏
查看更多内容