摘要
为了实现北斗卫星导航接收机射频前端的研制,根据接收机射频模块系统指标要求,包括增益、噪声系数、灵敏度等关键指标要求,提出一种基于ATF54143的LNA设计方案,采用两级结构,源极传输线负反馈稳定技术,实现输入最佳噪声匹配,输出共轭匹配设计,并用ADS软件进行仿真,得到增益32dB,噪声系数0.45dB,输入驻波比1.5。
In order to achieve the development of BeiDou navigation satellite receiver front-end,according to the system＇s requirements including the gain,noise figure,sensitivity and other key indicators,a LNA design based on ATF54143 is introduced.The design used two-stage structure and source transmission line negative feedback technology,input the best noise match and output conjugate matched design,performed simulation with ADS software to get 32 dB gain,0.45 dB noise figure and1.5 input VSWR.
出处
《现代电子技术》
2012年第5期99-101,104,共4页
Modern Electronics Technique
基金
2010年福建省重大专项(2010HZ0004-1)
福州市市校科技合作项目(2011-G-105)
福州大学科技发展基金(2011-XY-23)
