一种用于北斗导航接收机的全集成差分LNA  

A Full-Integrated Differential LNA for BeiDou GNSS Receiver

作　　者：郑瑞沣 陈志铭[1] 刘自成[1] 

机构地区：[1]北京理工大学微电子实验室,北京100081

出　　处：《微电子学》2016年第1期22-24,28,共4页Microelectronics

基　　金：国家自然科学基金资助项目(61301006;61201040);高等学校学科创新"引智计划"资助项目(B14010)

摘　　要：基于SMIC 180nm CMOS工艺,设计了一款用于北斗导航接收机射频前端的低噪声放大器。在该低噪声放大器中,所有电感均为片上实现,提高了集成度;采用差分结构,提升了共模噪声抑制能力。LNA的输入和输出均为50Ω标准阻抗匹配。测试结果表明,当频率为1.27GHz时,该LNA的功率增益为15dB,噪声系数(NF)为2.3dB,1dB压缩点(P1dB)为-6dBm。差分电路单路功耗为25mW,芯片面积为1.2mm2。A full-integrated differential LNA for RF front end of BeiDou GNSS receiver was designed and fabricated in SMIC180 nm CMOS process.All inductors were realized on chip to increase the integration.Differential structure was applied to improve the common noise rejection.Both input and output impedances were matched to 50Ω.The measured results indicated that the LNA achieved a power gain of 15 dB,a noise figure of 2.3dB and a P1dBof-6dBm with 25 mW power consumption per branch as well as 1.2mm2 chip area occupation.

关 键 词：低噪声放大器 CMOS 片上电感 差分结构 北斗导航接收机 

分 类 号：TN432[电子电信—微电子学与固体电子学]