Power-amplifier module with digital adaptive predistortion for cellular phones

被引：25

作者：

Kusunoki, S ^{[1
]}

Yamamoto, K

Hatsugai, T

Nagaoka, H

Tagami, K

Tominaga, N

Osawa, K

Tanabe, K

Sakurai, S

Iida, T

机构：

[1] Sony Ericsson Mobile Commun Japan Inc, Tokyo 1080075, Japan

[2] Taiyo Yuden Co Ltd, Gunma 3700024, Japan

[3] Toshiba Co Ltd, Kawasaki, Kanagawa 2128520, Japan

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2002年 / 50卷 / 12期

关键词：

amplitude-amplitude modulation (AM/AM); amplitude-phase modulation (AM/PM); code division multiple access (CDMA); module; power-added efficiency (PAE); power amplifier (PA); predistortion;

D O I：

10.1109/TMTT.2002.805137

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：

This paper describes a new type of power amplifier (PA) module with a predistortion function and can be applied to N-CDMA (narrow-band CDMA system defined in IS-95B Standard) handset terminals. Distortion compensation technology to improve the efficiency,of the PA is discussed quantitatively. Various parameters to be considered in designing are investigated in detail. The predistortion technology proposed is based on the lookup-table method using the input,and output signal envelopes and can operate independently from the baseband block. By omitting adaptative predistortion for amplitude/phase modulation and integrating the main controlling functions on a single CMOS integrated-circuit chip, predistortion capability has been realized in a PA module.. The PA module has power-added efficiency (PAE) of 48% at an output power of 27.5 dBm. This PAE is very high in comparison with that of the conventional PA module for N-CDMA.

引用

页码：2979 / 2986

页数：8

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