A Modified Canonical Piecewise-Linear Function-Based Behavioral Model for Wideband Power Amplifiers

被引：29

作者：

Zhai, Jianfeng ^{[1
]}

Zhang, Lei ^{[1
]}

Yu, Zhiqiang ^{[1
]}

Zhou, Jianyi ^{[1
]}

Hong, Wei ^{[1
]}

机构：

[1] Southeast Univ, State Key Lab Millimeter Waves, Sch Informat Sci & Engn, Nanjing 210096, Jiangsu, Peoples R China

来源：

IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS | 2016年 / 26卷 / 03期

关键词：

Behavioral modeling; canonical piecewise-linear function (CPWL); decomposed vector rotation (DVR); power amplifier (PA); volterra series; DIGITAL PREDISTORTION; VOLTERRA;

D O I：

10.1109/LMWC.2016.2524512

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 modified canonical piecewise-linear function (CPWL)-based model is proposed for characterizing wideband power amplifiers. The model has a similar structure of the decomposed vector rotation (DVR) model but without DVR operations, in which the first-order basis function can be replaced by a second-order function by analysis. The model has lower complexity than the DVR model and the model parameter scan be estimated by least-square method. Experimental results show that the proposed model nearly gives the same normalized mean square error performance as the DVR model when a wideband Doherty power amplifier is excited by a 5-carrier long-term evolution advanced (LTE-A) signal of 100 MHz bandwidth.

引用

页码：195 / 197

页数：3

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