Adaptive bias LINC transmitter design using EDA software for power efficiency improvement

被引：1

作者：

Lin, Song ^{[1
]}

Fathy, Aly E. ^{[1
]}

机构：

[1] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA

来源：

INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2013年 / 23卷 / 03期

关键词：

adaptive bias; LINC; power amplifier; power combiner; VMCD PA; AMPLIFIERS; RF;

D O I：

10.1002/mmce.20675

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this article, a novel adaptive bias LInear amplification with Nonlinear Components (LINC) transmitter is introduced and analyzed. Predistortion is applied to the baseband signal and the bias of the high-efficiency power amplifier is adaptively changed according to the envelope distribution of the baseband signal and the power amplifier itself. This novel transmitter can simultaneously achieve high average efficiency and linearity even with a high peak to average ratio signal. A comprehensive simulation framework has been developed using EDA software to validate this adaptive bias scheme with 16, 32, and 64 quadrature amplitude modulation signals. The simulation results show that this novel scheme can help in improving the average overall efficiency of the LINC transmitter by 15% while sustaining expected linearity. (c) 2012 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2013.

引用

页码：309 / 317

页数：9

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