New linearization method for the modulated signals with high peak-to-average ratio: Peak-to-average ratio reduction and expansion

被引：4
|
作者：
Yang, Y [1 ]
Woo, YY [1 ]
Cha, J [1 ]
Yi, J [1 ]
Kim, B [1 ]
机构：
[1] Pohang Univ Sci & Technol, Dept Elect & Elect Engn, Pohang, South Korea
来源：
2002 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-3 | 2002年
关键词：
D O I：
10.1109/MWSYM.2002.1011745
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 new linearization method for the high power amplifier modulated by a high peak-to-average ratio signal is proposed. The amplifier consists of a high power amplifier with a predistorter, a peak power limiter, and cancellation loops similar to the feedforward amplifier. The linearization performance is enhanced by reducing the peak input power to the amplifier using a rate limiter and the distortion from the limited signal is restored at the cancellation sub-path. Simulation and experimental results for the amplifier module with WCDMA signal show a significant improvement of ACLR.
引用
收藏
页码：777 / 780
页数：4
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