| 0.4~2.2 GHz连续F类功率放大器设计 |
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| 引用本文： | 李 阳,高洪民,刘 刚,冷永清. 0.4~2.2 GHz连续F类功率放大器设计[J]. 太赫兹科学与电子信息学报, 2019, 17(6): 1065-1070 |
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| 作者姓名： | 李 阳 高洪民 刘 刚 冷永清 |
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| 作者单位： | 1.School of Information and Electronics，Beijing Institute of Technology，Beijing 100081，China；2.Institute of Microelectronics，Chinese Academy of Sciences，Beijing 100029，China,School of Information and Electronics，Beijing Institute of Technology，Beijing 100081，China,Institute of Microelectronics，Chinese Academy of Sciences，Beijing 100029，China and Institute of Microelectronics，Chinese Academy of Sciences，Beijing 100029，China |
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| 基金项目： | 国家自然科学基金资助项目(61501455) |
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| 摘 要： | 连续F类功放(PA)通过引入修正因子，减轻功放对基波和二次谐波阻抗的要求，从而扩展F类功放的带宽。本文在连续F类功放基础上，提出一种新型修正型连续F类工作模式。通过引入电阻性二次和三次谐波阻抗进一步扩展连续F类功放的设计空间，使其可实现多个倍频程带宽。基于此理论，采用负载牵引方法对基波和谐波进行最佳阻抗提取，结合实频技术设计功放匹配网络，实现了一款超宽带高效率功率放大器。该功放在0.4~2.2 GHz频段内，饱和输出功率为39.8~41.4 dBm，漏极效率在59%~79%之间，增益大于10 dB。仿真与测试结果良好，验证了该方法的正确性。
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| 关 键 词： | 超宽带；高效率；连续F类；功率放大器 |
| 收稿时间： | 2018-06-19 |
| 修稿时间： | 2018-09-20 |
Design of 0.4-2.2 GHz continuous class-F modes power amplifiers |
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| LI Yang,GAO Hongmin,LIU Gang and LENG Yongqing. Design of 0.4-2.2 GHz continuous class-F modes power amplifiers[J]. Journal of Terahertz Science and Electronic Information Technology, 2019, 17(6): 1065-1070 |
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| Authors: | LI Yang GAO Hongmin LIU Gang LENG Yongqing |
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| Abstract: | The continuous Class-F Power Amplifier(PA) can mitigate the requirement of fundamental and second harmonic impedances by introducing a modified factor, thus extending the bandwidth of class-F PAs. In this paper, a new modified continuous Class-F mode is proposed. The design space is extended by introducing the resistive second and third harmonic impedance, so that it can realize multi-octave bandwidth. Based on this theory, an ultra-broadband high-efficiency power amplifier is realized showing 59%-79% drain efficiency,39.8-41.4 dBm saturation output power and large signal gain above 10 dB in 0.4-2.2 GHz frequency range. The simulation and test results are good, which verifies the validity of the methodology. |
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