30MHz-512MHz宽带功率放大器的研制  

30MHz-512MHz wide-band power amplifier

作　　者：陈玉梅[1] 钱光弟[1] 龚兰[2] 

机构地区：[1]电子科技大学自动化工程学院,四川成都610054 [2]中国测试技术研究院,四川成都610021

出　　处：《中国测试技术》2007年第2期137-140,共4页CHINA MEASUREMENT & TESTING TECHNOLOGY

摘　　要：功率放大器是射频前端中的关键部件,宽带是目前功率放大器的主要发展趋势。根据宽带功率放大器的设计原理,采用推挽结构晶体管,前馈线性化技术,传输线变压器和微带混和匹配电路,利用ADS进行仿真设计,成功的设计出一款宽带功率放大器。实现了多倍频程带宽、确保带内增益平坦、驻波小、线性范围和动态范围大。通过仿真和测试,得到较为理想的结果。Wide-band is the main trends of development of power amplifier, which is key component of broadband RF front end. Based on the design theory of power amplifier, a wide-band power amplifier was designed successfully by the push-pull transistor, the feedforward technical of linearization, the matching circuits of transmission line transformers and mierostrip, and ADS simulation software. It realized Multi-octaves broadband, flat intraband gain, low standing wave ratio, long linear range and dynamic range. By means of simulation and test, perfect results were achieved.

关 键 词：宽带 前馈 传输线变压器 微带 匹配电路 功率放大器 

分 类 号：TN721[电子电信—电路与系统]