作者
You-Jiang Liu, Wenhua Chen, Jie Zhou, Bang-Hua Zhou, Fadhel M Ghannouchi
发表日期
2012/12/21
期刊
IEEE Transactions on Microwave Theory and Techniques
卷号
61
期号
1
页码范围
281-290
出版商
IEEE
简介
Cross-band modulation effects in the concurrent dual-band transmitters are quite noticeable for the linearization. This paper proposes a novel two-dimensional modified memory polynomial (2D-MMP) technique to compensate for nonlinear distortion in the concurrent dual-band transmitters. By taking into account the cross-band modulation effects, the 2D-MMP model is developed by properly modifying the envelope terms of the conventional memory polynomial (MP) model. This makes the model complexity of the 2D-MMP model significantly reduced compared to the prior 2D-DPD model in previous work. However, the linearization ability of the 2D-MMP model is still retained. Simulations prove that the 2D-MMP model is quite robust to different PA models. Experimental measurements were carried out for a dual-band class-AB PA exhibiting mild nonlinearity and a highly nonlinear dual-band Doherty PA. The results …
引用总数
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学术搜索中的文章
YJ Liu, W Chen, J Zhou, BH Zhou, FM Ghannouchi - IEEE Transactions on Microwave Theory and …, 2012