重庆理工大学学报：自然科学2012，Vol.26Issue(2)：92-96,5.
地面数字电视调谐器前端宽带低噪声放大器设计
Design of Digital Television Terrestrial Tuner Front-end Broadband Low-noise Amplifier
摘要
Abstract
A design of a wideband CMOS low noise amplifier （LNA） based on feedforward offset noise CG （common gate） structure is proposed in this paper, with the frequency range covered by the TV tuner as channel range （50 ~ 900 MHz）. Compared with the conventional negative feedback low noise amplifier, amplifier circuit proposed in this paper has better performance. In the operating fre- quency, the voltage gain （S21） is greater than 14.3dB, Sll is less than -11.3 dB, noise figure （NF） is less than 2.87dB, gain ldB compression point is -4.4dBm, and the reference input third-or- der intercept point （IIP3） is more than 5dBm.关键词
低噪声放大器/CG结构/电压增益/噪声系数Key words
low noise amplifier/CG structure/voltage gain/noise figure分类
信息技术与安全科学引用本文复制引用
曾孝平,赵宇,黎小娇,熊东,杨学敏,王峰..地面数字电视调谐器前端宽带低噪声放大器设计[J].重庆理工大学学报：自然科学,2012,26(2):92-96,5.基金项目
基金项目：重庆市重大科技专项 （）
中央高校基本科研业务费资助项目（CDJZR10160008 （）
CD.JRC11160002） （）
