应用于双频GPS接收机的CMOS低噪声放大器设计

Design of CMOS LNA in Dual-Band GPS Receiver

结合双频GPS接收机的主要性能,提出了第一级低噪声放大器实现方案和电路实现方式.通过对影响单端LNA性能主要因素的分析,在电路结构和封装打线方式上进行改进,实现了低噪声系数高转换增益的单端LNA,从而提高了接收机灵敏度和噪声性能.

With consideration of the crucial performances of dual-band GPS receivers,both system-level scheme and circuit-level implementation of the first stage LNAs are proposed.Through analysis of parameters influencing parameters of single-ended LNA,improvements in packaging and topology are presented to achieve low noise figure and high conversion gain,therefore,sensitivity and noise performance of the receiver are improved.