Application of digital adaptive pre-distortion to mobile wireless devices

被引：13

作者：

Norris, George ^{[1
]}

Staudinger, Joe ^{[1
]}

Chen, Jau-Horng ^{[1
]}

Rey, Claudio ^{[1
]}

Pratt, Patrick ^{[2
]}

Sherman, Rick ^{[1
]}

Fraz, Hamza ^{[3
]}

机构：

[1] Freescale Semicond, Tempe, AZ 78735 USA

[2] Freescale Semicond, Cork, Ireland

[3] Georgia Tech, Atlanta, GA USA

来源：

2007 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS (RFIC) SYMPOSIUM, DIGEST OF PAPERS | 2007年

关键词：

power amplifiers; adaptive signal processing; nonlinearities;

D O I：

10.1109/RFIC.2007.380875

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Low power adaptive pre-distortion (APD) techniques are applied to nonlinear RF power amplifiers for mobile devices. An APD system is demonstrated which reduces spectral regrowth products by 10-20dB and increases modulation accuracy by 2-6X. The use of APD allows a reduction in 3G PA supply current by 2X and provides immunity to load mismatches as high as 8:1.

引用

页码：247 / +

页数：3

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