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文章阐述了灵敏度的概念并且提出了RF电路中根据灵敏度的参数分类,在设计适用于数字电视调谐器电路的LNA时对不同LNA拓扑结构进行参数灵敏度分析并且用Agilent ADS仿真验证,测试证明根据灵敏度分析结果进行PCB布局后的LNA性能更加稳定。
This paper describes the concept of sensitivity and proposes sensitivity classifications for RF circuits. Parametric sensitivity analysis of different LNA topologies when designing LNAs suitable for digital TV tuner circuits is performed using Agilent ADS simulation. The tests demonstrate that based on sensitivity Analysis Results LNA performance after PCB layout is more stable.