1. 中国科学院微电子研究所 机构 新一代通信射频芯片技术北京市重点实验室,北京,100029
2. 中国科学院微电子研究所 健康电子研发中心,北京,100029
3. 中国科学院大学 机构 电子电气与通信工程学院,北京,101400
纸质出版:2018
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王浩全, 李志强. 3.3~3.9 GHz宽带Doherty功率放大器的设计[J]. 微电子学与计算机, 2018, 35(8): 97-100.
WANG Hao-quan, LI Zhi-qiang. The Design of A 3.3~3.9 GHz Broadband Doherty Power Amplifier Module[J]. 2018, 35(8): 97-100.
本文实现了一款GaN宽带Doherty功率放大器.基于CCGH40025管芯
在ADS(Advanced Design system)中进行微带线建模与模型的电磁场仿真.利用双阻抗匹配的原理
使用ADS中随机优化以及梯度优化的方法
进行微带线的优化仿真
设计一款工作在3.3~3.9 GHz的Doherty宽带功率放大器.仿真实现最大输出功率48 dBm
效率65%以上
功率回退6 dB
输出功率42 dBm
效率47%以上.这种设计方法可应用于宽带射频通信系统中.
In this paper
a GaN broadband Doherty power amplifier is designed. A broadband power amplifier of 3.3~3.9 GHz based on CGH40025 chip model is designed
with modeling and electromagnetic field simulation of micro-strip in ADS (Advanced Design system).Using random optimization and gradient optimization method in the ADS with the principle of double impedance matching. The simulation result show that the broadband power amplifier module have a good performance in the wide band of 3.3~3.9 GHz
the gain is 12-13 dB
the maximum output power is 47.7 dBm
and the efficiency is above 65%
the power is back 6dB
the output power is 41.7dBm
and the efficiency is above 47%.The design method can be applied to the broadband radio frequency communication system.
Weimin Shi, Songbai He, Fei You et al. The Influence of the Output Impedances of Peaking Power Amplifier on Broadband Doherty Amplifiers[J].IEEE Transactions on Microwave Theory and Techniques, 2017, 65(8):3002-3013. DOI: 3002
徐兴福. ADS2011射频电路设计与仿真实例[M].北京:电子工业出版社, 2014.
R. Giofrè, L. Piazzon, P. Colantonio et al, A closed form design technique for ultra-wideband Doherty power amplifiers[J].IEEE Transactions on Microwave Theory and Techniques, 2014, 62(12):3414-3424. DOI: 3414
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池保勇, 余志平, 石秉学. CMOS射频集成电路分析与设计[M].北京:清华大学出版社, 2006.
J. M. Rubio, J. Fang, V. Camarchia et al, 3-3.6-GHz wideband GaN Doherty power amplifier exploiting output compensation stages[J]. IEEE Transactions on Microwave Theory and Techniques, 2012, 60(8):2543-2548. DOI: 2543
Jin-hee Kwon, Min-cheol Seo, Hwi-seob Lee. Broadband Doherty Power Amplifier Based on Asymmetric Load Matching Networks [J]. IEEE Transaction on Circuits and Systems, 2015, 62 (6): 533-537. DOI: 533
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