Design of Broadband High-Efficiency Power Amplifiers Based on a Series of Continuous Modes
Design of Broadband High-Efficiency Power Amplifiers Based on a Series of Continuous Modes
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DOI：
10.1109/lmwc.2014.2331457
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发表时间：
2014-07
影响因子：
3
通讯作者：
Jinhu Chen;Songbai He;F. You;Renbin Tong;Ruimin Peng
中科院分区：
文献类型：
--
作者：
Jinhu Chen;Songbai He;F. You;Renbin Tong;Ruimin Peng
在这封信中，一系列连续模式的宽带高效率功率放大器（PA）的设计提出，扩展了连续模式的概念。基于这些模式的阻抗解空间为实现宽带高效功率放大器提供了更大的自由度。为了验证这一理论，一个高效率的PA超过54.5%的带宽从1.6到2.8 GHz的设计。仿真结果表明，该放大器的基波阻抗与理论计算值吻合较好。此外，该功率放大器在目标频段的平均输出功率为14.2 W，平均漏极效率为75.7%。
In this letter, a series of continuous modes for designing broadband high-efficiency power amplifiers (PAs) are proposed, which extend the continuous mode concept. The impedance solutions space based on these modes offer a greater freedom for realizing broadband high-efficiency PAs. To verify this theory, a high-efficiency PA over a 54.5% bandwidth from 1.6 to 2.8 GHz is designed. The simulated results show that the fundamental impedances in this PA are found to be in good agreement with the calculated ones. Moreover, this PA delivers average output power of 14.2 W with an average drain efficiency of 75.7% in the target band.