F类与逆F类功率放大器的效率研究

›› 2011, Vol. 24 ›› Issue (8): 78-.

F类与逆F类功率放大器的效率研究

解冰一,蔡斐,章宏,吕国强

(1.合肥工业大学特种显示技术教育部重点实验室,安徽合肥 230009;2.合肥工业大学仪器科学与光电工程学院,
安徽合肥 230009;3.合肥工业大学光电技术研究院,安徽合肥 230009)

出版日期:2011-08-15 发布日期:2011-08-19
作者简介:解冰一(1986—),男,硕士研究生。研究方向:射频微波电路。

Analysis of Efficiency of Class-F and Inverse Class-F Power Amplifiers

XIE Bing-Yi, CAI Fei, ZHANG Hong, LV Guo-Qiang

(1.Ministry of Education Key Laboratory of Special Display Technology,Hefei University of Technology,Hefei 230009,China;
2.School of Instrument Science and Opto-electronic Engineering,Hefei University of Technology,
Hefei 230009,China;3.Academy of Opto-electronic Technology,Hefei University of Technology,Hefei 230009,China)

Online:2011-08-15 Published:2011-08-19

摘要/Abstract

摘要：

为了对F类与逆F类功率放大器的效率进行研究,首先从理论方面对两种放大器工作模式各自的效率进行了计算。通过计算可以看出,在相同的输出功率下,因为晶体管导通内阻的存在,逆F类功率放大器的效率优于F类功率放大器。再通过软件仿真设计F类和逆F类功率放大器,在相同的输出功率下,逆F类功率放大器的最高漏极效率为91.8%,F类功率放大器的最高漏极效率为89.3%。

关键词: F类;逆F类;功率放大器;漏极效率

Abstract:

The research aims at analyzing the efficiency differences between class-F and inverse class-F power amplifier.First,the efficiency of each amplifier was calculated on the theoretical basis.According to the formula,the inverse class-F amplifier had better efficiency than that of class-F amplifiers at identical output power level,owing to the on-resistance of the transistor.Then the two amplifiers were designed through software simulation.At identical output power level,inverse class-F power amplifier's maximum drain efficiency was 91.8%,and class-F power amplifier's maximum drain efficiency was 89.3%.

Key words: class-F;inverse class-F;power amplifier;drain efficiency

中图分类号:

TN722.7+5

解冰一, 蔡斐, 章宏, 吕国强. F类与逆F类功率放大器的效率研究[J]. , 2011, 24(8): 78-.

XIE Bing-Yi, CAI Fei, ZHANG Hong, LV Guo-Qiang. Analysis of Efficiency of Class-F and Inverse Class-F Power Amplifiers[J]. , 2011, 24(8): 78-.

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