摘要
设计一种满足全频段全球卫星导航系统（global navigation satellite system, GNSS）接收机应用要求的低噪声放大器（low noise amplifier, LNA）。为提高射频前端的集成度并降低成本，提出一种基于发射极电感负反馈结构宽带LNA的实现方法，并对电路结构、宽带输入阻抗匹配和噪声性能进行分析。电路采用0.18 μm SiGe BiCMOS工艺设计和实现。研究结果表明：在GNSS全频段范围（1 164-1 610 MHz）内，输入回损大于8.0 dB，输出回损大于8.9 dB，噪声系数低于1.30 dB，功率增益高于14.9 dB，输入三阶互调点为-5.8 dBm。芯片最低功耗为9.6 mW，面积约为600 μm×650 μm。
A low noise amplifier （LNA） for full-band global navigation satellite system （GNSS） receivers was presented. To improve the integration of the RF front end and cut down the costs, an implementation method based on emitter-Inductor degenerated wide-band LNA was proposed. Then the architecture, wide-band input impedance matching and noise performance were analyzed. Based on 0.18 μm SiGe BiCMOS technology, the LNA was designed and implemented. The results show that the minimum input and output return losses are 8.0 dB and 8.9 dB respectively, the maximum noise figure is 1.30 dB, a minimum power gain of 14.9 dB and an IIP3 of -5.8 dBm are achieved in GNSS full-band from 1 164 MHz to 1 610 MHz. The minimum power consumption is 9.6 mW and the die area is about 600 μm×650 μm.
出处
《中南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第7期2217-2222,共6页
Journal of Central South University:Science and Technology
基金
国家"核高基"重大专项(2009ZX01031-002-008)
嘉兴市科技计划项目(2012BZ5006)
嘉兴市南湖区科技计划项目(2011QG06)
