摘要
根据宽带功放的设计原理,采用平衡式结构,负反馈技术,稳定化技术,传输线变压器以及微带混合匹配电路设计出了一款宽带功率放大器。用ADS对其进行优化仿真,通过分析仿真结果,可以看出在225 MHz～512 MHz频段内,放大器功率增益可达到23 dB,增益平坦度小于1.1 dB,理想情况下输入输出驻波比达到1∶1,并具有良好的稳定性。
According to the broadband amplifier design theory,a broadband amplifier was designed by using balanced structure,feedback technology,stabilization technology,transmission line transformer and microstrip hybrid matching circuit.The study used the ADS software to make the circuit optimal simulation,through analysis of the simulation results,can be seen in the 225 MHz^512MHz frequency band,the amplifier can provide 23 dB gain,less than 1.1dB flatness,1：1 VSWR under the ideal conditions and achieve a better stability.
出处
《电子器件》
CAS
北大核心
2012年第5期514-517,共4页
Chinese Journal of Electron Devices
关键词
宽带放大器
平衡放大器
负反馈技术
宽带匹配
broad-band amplifier
balanced amplifier
feedback technology
broadband matching
