摘要
为了提高接收机的性能,基于台积电公司0.18μm CMOS工艺设计了低噪声放大器。从晶体管模型出发,分析了阻抗匹配,采用源端负反馈和提高输入匹配的电感Q值来降低噪声。通过电路的共源共栅结构搭配电路,消除密勒电容,提高电路性能。
To increase properties of receiver, a low noise amplifier is designed based on Taiwan Semiconductor Manufacturing Company Limited 0.18 μm CMOS technology. Starting with transistor model, we analyze the impedance matching. Noise has been decreased by using source negative feedback and improving Q-factor of input matched inductance. The miller capacitance can be eliminated by using collocating source and grid structure. Circuit performance has been improved.
出处
《天津职业技术师范大学学报》
2014年第3期8-11,共4页
Journal of Tianjin University of Technology and Education
基金
国家自然科学基金项目(61371043)
天津市应用基础及前沿技术研究计划(12JCYBJC10500)
关键词
CMOS
反馈
共源共栅
低噪声放大器
CMOS
feedback
collocating source and grid structure
low noise amplifier