Digital Predistortion of RF Power Amplifiers with Zhu's General Sampling Theorem

被引：0
|
作者：
Zhai, Jianfeng [1 ]
Zhang, Lei [1 ]
Yu, ZhiQiang [1 ]
Zhou, Jianyi [1 ]
Zhu, Xiaowei [1 ]
机构：
[1] Southeast Univ, Sch Informat Sci & Engn, Dept Radio Engn, State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China
来源：
2015 ASIA-PACIFIC MICROWAVE CONFERENCE (APMC), VOLS 1-3 | 2015年
关键词：
D O I：
暂无
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：
In this paper, the wideband digital predistortion (DPD) and the Zhu's general sampling theorem (ZGST) are applied to compensate the nonlinear characteristics of a wideband RE power amplifier with memory effects. In order to utilize the ZGST, the DPD test bench is carefully designed after analysis with the ZGST. The power amplifiers are excited by a long term evolution advanced signal with up to 100 MHz bandwidth and the memory polynomial model is chosen as the DPD mode after some modifications. The mode parameters are extracted by the standard least square method. Experimental results show that adjacent channel leakage ratio of the PA reaches about-55 dBc with over 10-dB improvement by DPD and the ZGST.
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页数：3
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