EFFECT OF MODULATION SCHEME ON LINC TRANSMITTER POWER EFFICIENCY

被引:28
作者
SUNDSTROM, L
JOHANSSON, M
机构
[1] Department of Applied Electronics, Lund University, S-221 00 Lund
关键词
RADIOFREQUENCY AMPLIFIERS; POWER AMPLIFIERS; LINEARIZATION TECHNIQUES;
D O I
10.1049/el:19941116
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
The authors describe how the power efficiency of an LINC transmitter is affected by the modulation scheme when using a conventional power combiner to recombine the constant envelope signals. The efficiency originating from the recombining peak at 60% for low-level modulation schemes but decreases to below 20% for high level schemes.
引用
收藏
页码:1643 / 1645
页数:3
相关论文
共 4 条
[1]  
BATEMAN A, 1988, P IEEE VEH TECHNOL C, P478
[2]   LINEAR AMPLIFICATION WITH NONLINEAR COMPONENTS [J].
COX, DC .
IEEE TRANSACTIONS ON COMMUNICATIONS, 1974, CO22 (12) :1942-1945
[3]   LINC TRANSMITTER [J].
HETZEL, SA ;
BATEMAN, A ;
MCGEEHAN, JP .
ELECTRONICS LETTERS, 1991, 27 (10) :844-846
[4]   EFFICIENCY OF OUTPHASING RF POWER-AMPLIFIER SYSTEMS [J].
RAAB, FH .
IEEE TRANSACTIONS ON COMMUNICATIONS, 1985, 33 (10) :1094-1099