多波段/多通道功率放大器线性化

Radio Frequency and Microwave Power Amplifiers. Volume 2: Efficiency and Linearity Enhancement Techniques Pub Date : 2019-08-12 DOI:10.1049/pbcs071g_ch9

M. Rawat, P. Roblin

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引用次数: 0

摘要

本章讨论了4G/5G通信中由于功率放大器(PA)非线性、调制器缺陷、多频(多频带)和多输入/输出传输方案导致的交叉调制和交叉干扰等硬件缺陷导致的信号失真的实际问题。本章主要针对系统级描述具有一定相似性的两个问题，以便在类似的数字预失真系统(DPD)中解决;然而，数字电平算法和实现挑战将彼此不同。

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Multiband/multichannel power amplifier linearization

This chapter addresses the practical problem of signal distortions due to hardware imperfections such as power amplifier (PA) nonlinearity, modulator imperfection, cross-modulation and cross-over interference due to the multiple-frequency (multiband) and multiple-input/output transmission schemes proposed for 4G/5G communication. Basically this chapter targets two problems whose system level description have a certain similarity, so that they can be tackled in a similar digital predistortion system (DPD); however, digital level algorithms and implementation challenges will differ from each other.

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来源期刊

Radio Frequency and Microwave Power Amplifiers. Volume 2: Efficiency and Linearity Enhancement Techniques

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