A 2.14-GHz Chireix outphasing transmitter

被引：96

作者：

Hakala, I ^{[1
]}

Choi, DK

Gharavi, L

Kajakine, N

Koskela, J

Kaunisto, R

机构：

[1] Nokia Res Ctr, FIN-00045 Helsinki, Finland

[2] Nokia Res Ctr, San Diego, CA 92131 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2005年 / 53卷 / 06期

关键词：

high efficiency; outphasing; RF power amplifiers (PAs); transmitters;

D O I：

10.1109/TMTT.2005.848770

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：

A Chireix outphasing system for 2.14 GHz including two, saturated class-B pseudomorphic high electron-mobility transistor power amplifiers (PAs) and a Chireix power-combining circuit is reported in this paper. In an outphasing system, an arbitrary input signal is divided into two constant envelope branches. The phase-only modulated branches are then amplified with high-efficiency nonlinear PAs. By controlling the phases of these branches, the original signal waveform can be reconstructed, ideally with high efficiency and perfect linearity. In this paper, the design and implementation of an experimental Chireix outphasing system for a wide-band code division multiple access 2.11-2.17-GHz downlink band is presented. The measured system efficiency for 7-dB backed-off quadrature phase-shift keying signal was 42.2 % with a channel power of 31.2 dBm.

引用

页码：2129 / 2138

页数：10

共 12 条

[1] On the linearity and efficiency of outphasing microwave amplifiers [J].

Birafane, A ;

Kouki, AB .

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 2004, 52 (07) :1702-1708

[2]

CASADEVALL F, 1991, ELECTRON LETT, V27, P844

[3] High power outphasing modulation [J].

Chireix, H .

PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1935, 23 (11) :1370-1392

[4]

Conradi C. P., 1999, Engineering Solutions for the Next Millennium. 1999 IEEE Canadian Conference on Electrical and Computer Engineering (Cat. No.99TH8411), P105, DOI 10.1109/CCECE.1999.807179

[5]

GRUNDLINGH J, 2004, IEEE MTT S, P1535

[6]

Hakala I, 2004, 34TH EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3, CONFERENCE PROCEEDINGS, P1

[7] EFFICIENCY OF OUTPHASING RF POWER-AMPLIFIER SYSTEMS [J].

RAAB, FH .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1985, 33 (10) :1094-1099

[8]

Shi B, 2000, 2000 IEEE 51ST VEHICULAR TECHNOLOGY CONFERENCE, PROCEEDINGS, VOLS 1-3, P1909, DOI 10.1109/VETECS.2000.851604

[9] LINC power amplifier combiner method efficiency optimization [J].

Stengel, B ;

Eisenstadt, WR .

IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, 2000, 49 (01) :229-234

[10] AUTOMATIC ADJUSTMENT OF GAIN AND PHASE IMBALANCES IN LINC TRANSMITTERS [J].

SUNDSTROM, L .

ELECTRONICS LETTERS, 1995, 31 (03) :155-156

← 1 2 →