PENG Shulin,YAO Zhendong.Design of UHF Band Power Amplifier[J].Journal of Chengdu University of Information Technology,2024,39(01):8-12.[doi:10.16836/j.cnki.jcuit.2024.01.002]
UHF波段功率放大器设计
- Title:
- Design of UHF Band Power Amplifier
- 文章编号:
- 2096-1618(2024)01-0008-05
- 分类号:
- TN834
- 文献标志码:
- A
- 摘要:
- 为某UHF波段的发射机设计一款己类功率放大器,工作于频段430～455 MHz,介绍了谐波控制和匹配网络的设计。在放大器输出匹配网络前添加谐波控制电路,通过对晶体管漏极的谐波控制生成己类放大器的工作波形。同时,在输入、输出阻抗是复阻抗的情况下,使用简化实频技术对电路进行匹配,提高了匹配网络的效率。测试结果显示,该放大器输出功率达60 dBm,对应的增益为20 dB,PAE为79%,达到设计要求。
- Abstract:
- This paper designs a class-F power amplifier for a certain UHF band transmitter,operating in the 430-455 MHz frequency range,and introduces the design of harmonic control and matching networks in detail.A harmonic control circuit is added before the amplifier output matching network to generate the operating waveform of a class-F amplifier through harmonic control of the transistor drain.At the same time,when the input and output impedances are complex impedances,simplified real frequency technology is used to match the circuit,which improves the efficiency of the matching network.The final test results show that the output power of the amplifier reaches 60 dBm,the corresponding gain is 20 dB,and the PAE is 79%,meeting the design requirements.
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备注/Memo
收稿日期:2023-03-01
基金项目:国家自然科学基金资助项目(41475033); 中国气象局公益性行业(气象)科研专项资助项目(GYHY201306072)