Two-dimensional crest factor reduction for performance improvement of concurrent dual-band power amplifiers
Two-dimensional crest factor reduction for performance improvement of concurrent dual-band power amplifiers
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DOI：
10.1049/el.2013.1650
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发表时间：
2013-08
影响因子：
1.1
通讯作者：
Xiaofan Chen;Silong Zhang;Wen-hua Chen
中科院分区：
文献类型：
--
作者：
Xiaofan Chen;Silong Zhang;Wen-hua Chen
提出了一种二维波峰因数降低（2D-CFR）方法来提高并行双频功率放大器（PA）的性能。实验测量进行了1.9-2.6 GHz的并发双频LTE PA通过使用建议的2D-CFR和传统的1D-CFR，分别。经二维数字预失真（2D-DPD）后的测试结果表明，该方法的输出功率提高了10%，效率从28.1%提高到30.6%，误差矢量幅度从3.46%降低到2.67%，性能得到了显著改善。
A two-dimensional crest factor reduction (2D-CFR) is proposed to improve the performance of concurrent dual-band power amplifiers (PAs). Experimental measurements are performed on a 1.9-2.6 GHz concurrent dual-band LTE PA by using the proposed 2D-CFR and conventional 1D-CFR, respectively. Measured results after 2D digital predistortion (2D-DPD) show that the output power with the proposed 2D-CFR is increased by 10%, the efficiency is improved from 28.1 to 30.6% and the error vector magnitude is reduced from 3.46 to 2.67%, indicating a significant performance improvement.